· GB0-180 Actualtests.com - The Power of Knowing QUESTION 1: Which of the following is the function of the session layer( ) A. To provide encryption/decryption B. To provide data

Exam : GB0-180 Title : Huawei Certified Network Engineer Ver : 06.04.07

GB0-180

Actualtests.com - The Power of Knowing

QUESTION 1: Which of the following is the function of the session layer( ) A. To provide encryption/decryption B. To provide data conversion and format C. To set up connections between different hosts D. To set up session between two applications Answer: D

QUESTION 2: Which of the following command is usually used for remote loggin( ) A. PING B. TRACERT C. TELNET D. IPCONFIG Answer: C

QUESTION 3: ( ) is a kind of broadcast, through which the host can dynamically discover the MAC address corresponding to one IP address A. ARP B. DNS C. ICMP D. RARP Answer: A

QUESTION 4: IEEE802.3 Ethernet adopts ( ) to support bus topology ,it is abbreviated from ( ). A. STP Spanning Tree Protocol B. STP Shortest Tree Protocol C. CSMA/CD Carrier Sense Multicast Access/Collision Detection D. CSMA/CD Carrier Sent Multicast Access/CRC Detection E. CSMA/CD Carrier Service Multiple Access/Collision Detection F. CSMA/CD Carrier Sense Multiple Access/Collision Detection

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Answer: B

QUESTION 5: The basic functions of transport layer are: A. Segment upper-layer data B. Create end-to-end connection C. Transmit data from the host at one end to the host at the other end D. Ensure the stability of data transmission Answer: ABCD

QUESTION 6: The principle used to evaluate the routing algorithm does NOT include( ) A. Fast convergence B. Flexibility C. Advancement in topology structure D. If the path selected is the best Answer: C

QUESTION 7: In the router, which of the following command can be used to view the routing table of a router( ) A. ARP -A B. TRACERT C. ROUTE PRINT D. DISPLAY IP ROUTING-TABLE Answer: D

QUESTION 8: Input display interface on Huawei Quidway router, and which of the following information you will see? A. The descriptions about the interface B. The route information concerning the said interface C. Error statistics D. Interface status

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Answer: ACD

QUESTION 9: Which of the following authentication algorithms are used for ppp authentication? A. MD5 B. PAP C. CHAP D. IPsec Answer: BC

QUESTION 10: RouterA and RouterB are connected by serial interface.The configuration of router A is as below: [Quidway1]display current-configurtion Now create configuration... Current configuration ! version 1.74 local-user huawei service-type ppp password simple quidway firewall enable sysname Quidway1 ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 1.1.1.1 255.0.0.0 ! interface Serial0 clock DTECLK1 link-protocol ppp ppp authentication-mode chap ppp chap user hw ip address 2.1.1.1 255.0.0.0 ! interface Serial1 link-protocol ppp ! quit

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ip route-static 0.0.0.0 0.0.0.0 2.1.1.2 preference 60 ! return The configuration of router B is as below: [Quidway2]display current-configurtion Now create configuration... Current configuration ! version 1.74 local-user hw service-type ppp password simple quidway firewall enable sysname Quidway2 encrypt-card fast-switch ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 3.1.1.1 255.0.0.0 ! interface Serial0 link-protocol ppp ppp chap user huawei ppp chap password simple quidway ip address 2.1.1.2 255.0.0.0 ! interface Serial1 link-protocol ppp ! quit ip route-static 0.0.0.0 0.0.0.0 2.1.1.1 preference 60 ! return WAN stands for serial link between RouterA serial interface and RouterB serial interface. LAN stands for the link between RouterA Ethernet interface and RouterB Ethernet interface. Which of the following statements is true( ) A. Both WAN and LAN can be connected B. Neither WAN, nor LAN can be connected C. The WAN on two ends can be connected, while LAN can not D. The WAN on two ends can not be connected, while LAN can be connected Answer: C

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QUESTION 11: Frame-relay is a ( ) protocol A. connection-oriented B. network C. connectionless D. reliable Answer: A

QUESTION 12: What is the meaning of the number "7" in the command "fr map ip 10.1.1.1 dlci 7 broadcast"? A. The number of local logic channel B. The number of local DLCI C. The number of interface at the opposite end D. The number of node at the opposite end Answer: B

QUESTION 13: In RIP protocol, which of the following parameter is used to computes metric( ) A. MTU B. Delay C. Bandwidth D. Route hop count Answer: D

QUESTION 14: The dynamic routing protocol has advantages over the static routing in: A. Less bandwidth occupation B. Simplicity C. The router can discern the network changes automatically D. The router can compute new routes automatically Answer: CD

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QUESTION 15: Which of the following commands to configure default route is correct: A. [Quidway]ip route-static 0.0.0.0 0.0.0.0 172.16.2.1 B. [Quidway]ip route-static 0.0.0.0 255.255.255.255 172.16.2.1 C. [Quidway-serial0]ip router-static 0.0.0.0 0.0.0.0 172.16.2.1 D. [Quidway]ip router-static 0.0.0.0 0.0.0.0 172.16.2.1 Answer: A

QUESTION 16: E0 and E1 of a Quidway router are connected to two network sections. E0 (its IP address is 10.1.1.1 and its subnet mask is 255.255.255.0) is connected to network A, and E1 (its IP address is 10.1.2.1 and its subnet mask is 255.255.255.0) is connected to network B Question: which of the following hosts can ping host successfully in network A? A. A host in network A whose IP address is 10.1.1.12 and subnet mask is 255.255.0.0 B. A host in network A whose IP address is 10.1.2.16 and subnet mask is 255.255.0.0 C. A host in network B whose IP address is 10.1.2.14 and subnet mask is 255.255.255.0 D. A host in network A whose IP address is 10.1.1.8 and subnet mask is 255.255.255.0 Answer: ACD

QUESTION 17: The range of the numeric ID of the standard access control list is( ) A. 1~50 B. 1~99 C. 1~100 D. 1~199 E. Specified by the network management staff Answer: B

QUESTION 18: The access control list [Quidway] acl 100 [Quidway-acl-100] rule permit ip source 129.38.1.1 0.0.255.255 destination 202.38.5.2 0.0.0.0, means:

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A. Permit host 129.38.1.1 to access host 202.38.5.2 B. Permit 129.38.0.0 network to access network 202.38.0.0 C. Permit host 202.38.5.2 to access network 129.38.0.0 D. Permit 129.38.0.0 network to access host 202.38.5.2 Answer: D

QUESTION 19: To check the application of access control list at a specified interface, which of the following commands is required? A. display acl B. display acl all C. display acl acl-number D. dispaly acl interface interface-type interface-number Answer: D

QUESTION 20: The fixed length part of IP packet header is ( ) bytes A. 10 B. 20 C. 30 D. 60 Answer: B

QUESTION 21: Which transmission layer protocol does TFTP server use, and what is the port number? A. UDP 69 B. TCP 67 C. TCP 23 D. UDP 53 Answer: A

QUESTION 22: Under TCP protocol, to create a connection requires ( ) process; the termination of a connection requires ( ) process

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A. Direct handshake; 2 handshakes B. 2 handshakes; 4 handshakes C. 3 handshakes; 4 handshakes D. 4 handshakes; 2 handshakes Answer: C

QUESTION 23: The command to enable Circular DDR is ( ) A. dialer-rule B. acl C. dialer-group D. dialer enable-circular Answer: D

QUESTION 24: In ISDN network, U interface is defined between ( ) A. TE1 and NT B. TE2 and TA C. NT1 and ISDN network D. NT1 and NT2 Answer: C

QUESTION 25: To configure one virtual circuit on X.25 to be logic channel, the correct configuration is( ) A. x25 map 1.1.1.2 x121-address 2202 logic-channel 1 B. x25 map ip 1.1.1.2 x121-address 2202 logic-channel 1 C. x25 map protocol ip 1.1.1.2 x121-address 2202 logic-channel 1 D. x25 map ip 1.1.1.2 2202 logic-channel 1 Answer: B

QUESTION 26: The command 'standby timer enable-delay ;standby timer disable-delay' is applied when:

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A. Active interface is physical interface B. Standby interface is physical interface C. Active interface is logic channel D. Standby interface is logic channel Answer: AC

QUESTION 27: For one network with the subnet address 5.32.0.0, and the mask 255.224.0.0, the maximum host address is( ) A. 5.32.254.254 B. 5.32.255.254 C. 5.63.255.254 D. 5.63.255.255 Answer: C

QUESTION 28: VLSM means: A. Variable Length Subnet Masking B. Variable Length Shortest Masking C. Very Long/Shortest Masking D. Variable Long Subnet Masking E. Variable Length Short Measurement Answer: A

QUESTION 29: For network card to connect the Ethernet interface of a router, ( ) should be used between the two interfaces A. Cross cable B. Standard cable C. Console cable D. AUX cable Answer: A

QUESTION 30:

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Quidway R1603/1604 router provides ISDN BRI interfaces, where Quidway R1603 provides A. S/T interface B. U interface C. E1 interface D. T interface Answer: A

QUESTION 31: In the Ethernet, different devices are distinguished according to ( ) address A. IP address B. MAC address C. IPX address D. LLC address Answer: B

QUESTION 32: The common Ethernet failure is: A. Redundant fragment frames (the length of frames less than 64 bytes) B. Token False C. Excessive conflict phenomenon D. Excessive noise phenomenon Answer: ACD

QUESTION 33: Data segmentation is implemented by which layer in OSI seven-layer model( ) A. Physical layer B. Network layer C. Transport layer D. Access layer E. Distribution layer F. Data link layer Answer: C

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QUESTION 34: In ISO/OSI reference model,typically ,which layer provide encryption function A. Physical Layer B. Transport Layer C. Session Layer D. Presentation Layer Answer: D

QUESTION 35: Which technologies have been adopted to ensure the buffer not to overflow? A. Data segmentation B. Acknowledgement Mechanism C. Flow control D. Slide window E. Data Fragmentation Answer: CD

QUESTION 36: The main function of the physical layer is A. To provide reliable information transfer mechanism B. To be responsible for error detection and provide the retransfer mechanism of information C. To be responsible for the physical and electric interface between the user-end equipment and the network-end equipment D. To set up and release the connection within the range of the network between the two transmission protocol entities Answer: C

QUESTION 37: Which identifier does hosts adopted to find hosts located in the same networks? A. Port number B. Mac address C. Default Gateway D. Network address

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Answer: B

QUESTION 38: Frame relay protocol works in which layers of ISO/OSI reference model? A. Physical layer and application layer B. Physical layer and data link layer C. data link layer and network layer D. data link layer and presentation layer Answer: B

QUESTION 39: The protocol data unit (PDU) at the network layer is referred to as( ) A. Data segment B. Packet C. Data bit D. Data frame Answer: B

QUESTION 40: Which of the following is the correct process of data encapsulation( ) A. Data segment->packet->data frame->bit flow->data B. bit flow->data segment->packet->data frame->data C. data->packet->data frame->data frame->bit flow D. data->data segment->packet->data frame->bit flow Answer: D

QUESTION 41: Subnet mask,255.255.192.0, can be represented in binary system as( ) A. 11111111 11110000 00000000 00000000 B. 11111111 11111111 00001111 00000000 C. 11111111 11111111 11000000 00000000 D. 11111111 11111111 11111111 00000000 Answer: C

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QUESTION 42: When the receiver can not process data any more, which layer send "stop" information to the sender? A. Physical layer B. Transport Layer C. Session layer D. Presentation layer Answer: B

QUESTION 43: 'For a host to login another host remotely, which of the following application is used( ) A. HTTP B. PING C. TELNET D. TRACERT Answer: C

QUESTION 44: The main function of the physical layer is to define what feature.... A. Electrical characteristic B. Functional characteristic C. Mechanical characteristic D. Error control in bit flow transmission Answer: ABC

QUESTION 45: TCP, UDP, SPX belong to the which layer of the OSI reference model( ) A. Network layer B. Transport layer C. Session layer D. Presentation layer Answer: B

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QUESTION 46: In OSI seven-layer model, what can provide end-to-end reliable data transmission and flow control ( ) A. Data link layer B. Network layer C. Transport layer D. Session layer E. Presentation layer Answer: C

QUESTION 47: Which sub-layer of data-link layer is used to be responsible for the establishment between equipments connected to one link? A. LLC B. MAC C. BIG MAC Answer: A

QUESTION 48: Which layer of the OSI reference model can ensure reliable end-to-end data transmission( ) A. Network layer B. Transport layer C. Session layer D. Presentation layer Answer: B

QUESTION 49: Which of the following statement about CSMA/CD are right? A. All data are sent by broadcasting. B. Data are sent to the nearest router, then the router send it to destination. C. If the source node have known the destination IP address and destination Mac address , data are sent to destination directly. D. Every node in the network must check every frame in the network in order to find that

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if itself is the receiver of this frame. Answer: AD

QUESTION 50: Bridge works at the which layer in OSI model? A. 1st B. 2nd C. 3rd D. 4th Answer: B

QUESTION 51: Which of the following is the function of data link layer of OSI reference model? A. Transmit raw bits on the channel B. Check network topology to determine the best route for packet transmisson C. Detect and correct error, provide a fine link to network D. Provide network interface to application Answer: C

QUESTION 52: In ISO/OSI reference model,which of the following is NOT function of presentation layer? A. Data encryption B. Data compression C. Session control D. Data format transformation Answer: C

QUESTION 53: ( ) is a valid MAC address A. 19-22-01-63-23 B. 192.201.63.252 C. 0000.1234.ADFG D. 00-00-11-11-11-AA

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Answer: D

QUESTION 54: ISO put forward OSI mainly for the purpose of( ) A. System interconnection B. Economic benefit C. Enhancing network speed D. Establishing standard for computers Answer: A

QUESTION 55: In TCP/IP protocol stack, DNS works at( ) A. Network layer B. Transport layer C. Session layer D. Presentation layer E. Application layer Answer: E

QUESTION 56: In TCP/IP protocol stack, TELNET works at( ) A. Network layer B. Transport layer C. Session layer D. Presentation layer E. Application layer Answer: E

QUESTION 57: In TCP/IP protocol stack, SMTP works at( ) A. Network layer B. Transport layer C. Session layer D. Presentation layer

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E. Application layer Answer: E

QUESTION 58: In TCP/IP protocol stack, FTP works at( ) A. Network layer B. Transport layer C. Session layer D. Presentation layer E. Application layer Answer: E

QUESTION 59: In TCP/IP protocol stack, SNMP works at( ) A. Network layer B. Transport layer C. Session layer D. Presentation layer E. Application layer Answer: E

QUESTION 60: In TCP/IP protocol stack, SNMP is directly based on which of the following protocol( ) A. IP B. ARP C. TCP D. UDP Answer: D

QUESTION 61: 'Which of the following belong(s) to transport layer protocol( ) A. X.25 B. SPX

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C. TCP D. UDP E. OSPF Answer: BCD

QUESTION 62: The network address of the routed protocol is composed of( ) A. Network address and host address B. Host address and network mask C. Network address and network mask D. None of the above is true Answer: A

QUESTION 63: IP address,190.233.27.13, is a class ( ) address A. A B. B C. C D. D Answer: B

QUESTION 64: The network part of the IP address, 190.233.27.13/16, is ( ) A. 190.0.0.0 B. 190.233.0.0 C. 190.233.27.0 D. 190.233.27.1 Answer: B

QUESTION 65: Which of the following commands are usually used for check network layer connectivity?( ) A. PING B. TRACERT

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C. TELNET D. IPCONFIG Answer: ABC

QUESTION 66: Concerning IP host address, which of the following is true( ) A. The host part of the IP address can be all 1, or be all 0 B. The network part of the IP address can be all 1, or be all 0 C. The network part of the IP address can not be all 1 or all 0 D. The IP address can be all 1, or be all 0 Answer: C

QUESTION 67: Which of the following network belong(s) to packet switched network( ) A. ETHERNET B. X.25 C. PSTN D. CATV Answer: B

QUESTION 68: The function(s) of DNS is( ) A. To assign IP address for the client B. To access HTTP application C. To translate the domain name into IP address D. To translate MAC address into IP address Answer: C

QUESTION 69: The port number of FTP data connection is(?) A. 20 B. 21 C. 23 D. 25

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Answer: A

QUESTION 70: The port number of FTP control connection is( ) A. 20 B. 21 C. 23 D. 25 Answer: B

QUESTION 71: Which of the following IP addresses belong(s) to the same network segment as 10.110.12.29 mask 255.255.255.224( ) A. 10.110.12.0 B. 10.110.12.30 C. 10.110.12.31 D. 10.110.12.32 Answer: B

QUESTION 72: The port number of TFTP protocol is A. 23 B. 48 C. 53 D. 69 Answer: D

QUESTION 73: DHCP client uses address (?) to apply for one new IP address. A. 224.0.0.1 B. 10.0.0.1 C. 127.0.0.1 D. 255.255.255.255

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Answer: D

QUESTION 74: When router executes packet forwarding, which of the following have NOT change?(Suppose that NAT technology have not been adopted ) A. Source port B. Destination port C. Source network address D. Destination network address E. Source MAC address F. Destination Mac address Answer: ABCD

QUESTION 75: Which of the following belong to Wan protocols? A. ISDN B. PPP C. HDLC D. Frame Relay E. X.25 F. Ethernet G. Token Ring Answer: ABCDE

QUESTION 76: Which of the following equipments can be used for Lan? A. Cable:optical fiber , twisted pairs , coaxial-cable B. Hub C. Modem/CSU/DSU D. Router Answer: ABD

QUESTION 77: In order, OSI reference model has layers of( )

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A. Application layer, transport layer, network layer, physical layer B. Application layer, session layer, transport layer, physical layer C. Application layer, presentation layer, session layer, transport layer, network layer, data link layer, physical layer D. Application layer, presentation layer, session layer, network layer, transport layer, data link layer, physical layer Answer: C

QUESTION 78: Which of the following class of address is used to support multicast( ) A. Class A B. Class B C. Class C D. None of the above Answer: D

QUESTION 79: The port number of TELNET is( ) A. 6 B. 17 C. 23 D. 69 Answer: C

QUESTION 80: When the diskless workstation applies IP address from the server, (?) protocol is used A. ARP B. RARP C. ICMP D. IGMP Answer: B

QUESTION 81: In OSI seven-layer model, the main function of the network layer is( )

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A. To transmit original bit flow over the channel B. To ensure that each section of message arriving at the other side correctly C. To determine the route selection of the packet from the source to the destination D. To exercise flow control regulation Answer: C

QUESTION 82: TCP/IP protocol, the most popular protocol in the world, is not corresponded strictly to the seven layer of OSI reference model. Corresponding to the seven-layer network model of OSI, which of the following is NOT defined by TCP/IP stack. A. Data link layer and network layer B. Network layer and transport layer C. Transport layer and session layer D. Session layer and presentation layer Answer: D

QUESTION 83: Which of the following device belongs to physical layer( ) A. Bridge B. Gateway C. Repeater D. Ethernet switch Answer: C

QUESTION 84: In physical layer of ISO/OSI reference model, there have NOT define A. Voltage B. Bits transmission C. Physical interface D. Mac address Answer: D

QUESTION 85: Which of the following is the valid IP address of a host( )

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A. 224.0.0.5 B. 127.32.5.62 C. 202.112.5.0 D. 162.111.111.111 Answer: D

QUESTION 86: IEEE802.5 standard refers to( ) A. Ethernet B. FDDI network C. Token ring network D. Token bus network Answer: C

QUESTION 87: Which function does MAC layer define( ) A. To provide logical address B. To provide hardware address C. To provide flow control function D. To screen the upper layer from the low layer transmission medium Answer: B

QUESTION 88: In TCP/IP protocol stack, after the high-layer protocol transfers the data to the network layer, (?) is generated, and then transmitted to the data link layer. A. Data frame B. Cell C. Packet D. Data segment Answer: C

QUESTION 89: IP address and its wildcard netmask get "and" operation, and the produced non-zero dotted decimal number is which part of the IP address:

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A. Class A address B. Host part C. Network address D. Resolution address Answer: B

QUESTION 90: The decimal form of the binary number 11001011 is A. 171 B. 193 C. 203 D. 207 Answer: C

QUESTION 91: The function of the data link layer includes ( ) A. Fragmenting data B. Providing logical address C. Providing flow control and error control D. Providing medium access and link management Answer: CD

QUESTION 92: The application PINGsends (?) A. TCP request message B. TCP response message C. ICMP echo request message D. ICMP echo reply message Answer: C

QUESTION 93: Concerning Hub, which of the following are true( ) A. Hub can be used to build LAN

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B. Generally, Hub possesses routing function C. Hub is usually also referred to as HUB, and can generally serve as address translation equipment D. All the PCs under one shared Ethernet Hub belong to one collision domain. Answer: AD

QUESTION 94: Which of the following is NOT the main characteristic of LAN( ) A. To provide full time local service B. To connect the physically adjacent equipment C. To provide multi-user broadband medium access D. To run over one large area Answer: D

QUESTION 95: When one host moves from one network to another, which of the following is true( ) A. Its MAC address and IP address need not to be changed B. Its IP address and MAC address need to be changed. C. Its IP address needs to be changed, while the MAC address needs not D. Its MAC address needs to be changed, while the IP address needs not Answer: C

QUESTION 96: The functions of the Tracert command are( ) A. Used to check if the network management is normal B. Used to check if the network connection is reachable C. Used to analyze where the problems lies in within the network Answer: BC

QUESTION 97: VLAN tag is implemented at which layer of OSI reference model? A. Physical layer B. Data link layer C. Network layer

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D. Application layer Answer: B

QUESTION 98: For IP address, 192.168.19.255/20, which of the following statements are true? A. This is a broadcast address B. This is a network address C. This is a private address D. The address is in192.168.19.0 network segment E. The address is in 192.168.16.0 network segment F. This is a public address Answer: CE

QUESTION 99: Which layer of the OSI reference model is responsible for addressing and routing? A. Data link layer B. Network layer C. Transmission layer D. Application layer Answer: B

QUESTION 100: The three techniques of flow control are: A. Buffering technique B. Source suppression technique C. Port rate self-negotiation mechanism D. Window mechanism Answer: ABD

QUESTION 101: Data link layer is divided into two sub-layers: A. Logical link control sub-layer B. Access layer C. Medium access control sub-layer

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D. Core layer Answer: AC

QUESTION 102: Which of the following is connectionless transmission protocol? A. TCP B. UDP C. IP D. SPX Answer: B

QUESTION 103: Which of the following protocols belong to application layer protocols. A. Telnet B.NFS C.FTP D.MPEG E.HTTP F.OSPF G.RIP H.TCP I.ICMP J.DNS Answer: ABCEFGJ

QUESTION 104: Which layer of the OSI reference model is responsible for routing, addressing, data packet forwarding? A. Physical layer B. Data link layer C. Network layer D. Transmission layer E. Application layer Answer: C

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QUESTION 105: Which of the following protocols belong to the OSI reference model layer 7th? A. FTP B. SPX C. Telnet D. PPP E. TCP F. IGMP Answer: AC

QUESTION 106: On network layer of the OSI reference model,_________is transmitted to the destination host A. User information B. Section C. Data packet D. Frame E. Bit F. PDU Answer: C

QUESTION 107: Which layer of the OSI reference model executing the following functions: To set up and maintain connection between terminal network equipment; To provide reliable or unreliable data transmission; To execute flow control; To transmit two or more messages on a single channel. A. Application layer B. Transport layer C. Network layer D. Data link layer Answer: B

QUESTION 108: Which of the following are mainly differences between LAN and WAN?

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A. Bandwidth B. Protocol C. Area coverage D. Network equipment Answer: C

QUESTION 109: In the seven-layer reference model defined by ISO, which of the following statements concerning data link layer is true: A. It implements the characteristics, such as mechanical, interface and electrical requirements for data transmission B. It exercises flow control, error detection, link management, physical addressing C. It checks network topology structure and performs routing and addressing D. It provides interface for application software Answer: B

QUESTION 110: Which of the following standardization organizations put forward OSI reference model? A. IEEE B. ANSI C. EIA/TIA D. IBA E. ISO Answer: E

QUESTION 111: Which of the following options are the main functions of data link layer? A. To provide control over physical layer B. Error control C. Flow control D. Decide the best route for packet transmission Answer: ABC

QUESTION 112:

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The most common data link layer standards on wide area network (WAN) are: A. HDLC B. PPP C. TCP/IP D. ISDN E. Frame Relay Answer: ABDE

QUESTION 113: Which of the following are the basic functions of physical layer: A. Transmit bit flow between terminal equipment B. Create and maintain virtual circuit, and perform error check and flow control C. Define such characteristics as voltage, interface, cable standard and transmission distance etc D. Choose the best root Answer: AC

QUESTION 114: The network takes the following common forms of topology: A. Bus B. Star C. Tree D. Ring E. mesh Answer: ABCDE

QUESTION 115: WAN usually adopt circuit switching or packet switching technology. A. True B. False Answer: A

QUESTION 116: Which of the following interface have been defined in physical layer of Wan?

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A. EIA/TIA-232 B. RS-232 C. V.24 D. V.35 Answer: ABCD

QUESTION 117: The Mac address of network equipment is unique in the world. A. True B. False Answer: A

QUESTION 118: Modem is a kind of equipment of Lan. A. True B. False Answer: B

QUESTION 119: The delay of packet switching is lower than that of circuit switching. A. True B. False Answer: B

QUESTION 120: In OSI reference model,data link layer and transport layer are all connection oriented. Data link layer connection is point to point connection ,and transport layer connection is end to end connection. A. True B. False Answer: B

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QUESTION 121: Presently, LAN standard applied most widely in the world is the Ethernet standard based on: A. IEEE 802.1 B. IEEE 802.2 C. IEEE 802.3 D. IEEE 802.5 Answer: C

QUESTION 122: MAC address of the current network equipment is made up of ( ) binary digits. IP address is made up of ( ) binary digits: A. 48,16 B. 64,32 C. 48,32 D. 48,48 E. 64,48 Answer: C

QUESTION 123: ( ) is currently used most widely Ethernet cable standard for 10M Ethernet. Its advantages are as follows: easy for extension; simple maintenance; low price A. 10Base5 thick coaxial cable B. 10Base-T C. 10Base2 thin coaxial cable Answer: B

QUESTION 124: The router is a network device used for network interconnection. But, as a router, it does NOT possess( ) A. One suit of routing protocol B. Accounting function C. Support for more than two kinds of network protocols D. Function of storage, forwarding, routing

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Answer: B

QUESTION 125: The main function of routers does NOT include( ) A. Rate adaptation B. WAN Protocol conversion C. Seven-layer protocol conversion D. Message fragmentation and reassembly Answer: C

QUESTION 126: In the router, the routing table is constantly maintained. This table can either be configured statically, or generated by( ) A. Spanning tree protocol B. Link control protocol C. Dynamic routing protocol D. routed protocol Answer: C

QUESTION 127: The routing table of Quidway router does NOT include( ) A. Subnet mask B. Source network address C. Destination network address D. Next hop address Answer: B

QUESTION 128: The routing algorithm uses various metrics to decide the best route. The weights commonly used do NOT include( ) A. Bandwidth B. Reliability C. Physical distance D. Cost

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Answer: C

QUESTION 129: As the network interconnection device, the router must possess which characteristics of the following( ) A. One suit of routing protocol B. Possessing at least one standby port C. Support for at least two network interfaces D. The protocol should implement at least to the network layer E. Possessing storage, forwarding and routing function F. It should possess relatively higher protocol processing capability Answer: ACDE

QUESTION 130: The basic function of the network layer of the router is( ) A. To configure IP address B. Path decision and packet forwarding C. To translate MAC address into IP address D. To translate IP address into MAC address Answer: B

QUESTION 131: When the length of the IP packet that the router receives is larger than the MTU of the router, which of the following policy will be adopted( ) A. To discard the packet B. To fragment the packet C. To forward the packet directly D. To send request to the source router to reduce the size of the packet Answer: B

QUESTION 132: As router receives a packet ,of which the TTL value is 1,then the router will( ): A. Discard the segment B. Forward the segment

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C. Split the segment D. None of the above Answer: A

QUESTION 133: During the process of forwarding packets to indirect connected network segment, upon which does Quidway router find the next hop address? A. Frame header B. IP packet head C. SSAP field D. DSAP field Answer: B

QUESTION 134: Which of the following statements concerning routers are true ( the switch is layer 2 switch): A. Comparing to switches and bridges, routers are more complicated in function B. Comparing to switches and bridges, routers are smaller in delay C. Comparing to switches and bridges, routers can provide larger bandwidth and data forwarding speed D. Routers can implement communication between different subnets, while switches and bridges can not E. Routers can implement communication between VLANs, while switches and bridges can not F. Routers have routing and data forwarding function Answer: ADEF

QUESTION 135: Which of the following statements concerning unnumbered IP address are true: A. The borrower can not be Ethernet interface B. If the interface borrowed has no IP address, then the IP address of the borrowing interface is 0.0.0.0 C. The address of the borrowed party can not be the borrowed address D. The address of the borrowed party can be lent to multiple interfaces E. If the interface borrowed has more than one IP address, only the primary IP address can be lent

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Answer: ABCDE

QUESTION 136: Logically, a router is made up of the following parts: A. Input and output interface B. Data forwarding part C. Route management part D. User configuration interface Answer: ABCD

QUESTION 137: The functions of a router are: A. Data forwarding B. Routing (path finding) C. Backup and flow control D. Rate adaptation E. Broadcast domain division F. Interconnect different networks Answer: ABCDEf

QUESTION 138: Which of the following options may cause serial interface reset? A. Data collision B. Link congestion C. Line damage D. CSU/DSU incurs hardware problem Answer: BCD

QUESTION 139: Quidway router can save a maximum number of ( ) historical commands,by default? A. 10 B. 15 C. 20

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D. 25 Answer: A

QUESTION 140: The prompt that can configure IP address is( ) A. <Router> B. Router# C. [Router] D. [Router-Ethernet0] Answer: D

QUESTION 141: One router in Beijingdisplays the following message: traceroute to Shengzhen(18.26.0.115),30 hops max 1 Beijing.cn 0 ms 0ms 0ms 2 rout1.cn 39 ms 39ms 39ms, which command does the user input on the router( ) A. [Quidway]ping Shengzhen B. [Quidway]host Shengzhen C. [Quidway]Telnet Shengzhen D. [Quidway]tracert Shengzhen Answer: D

QUESTION 142: If PINGone host success, the router should display ( ) prompt A. Timeout B. Unreachable C. Non-existent address D. Reply from 202.38.160.2 ...... Answer: D

QUESTION 143: When configuring Quidway router from Hyper-terminal, which of the following parameter is correct( ) A. The data bit is 8-bit; parity check is None; stop bit is None B. The data bit is 8-bit; parity check is None; stop bit is 1-bit

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C. The data bit is 8-bit; parity check is ON; stop bit is 1-bit D. The data bit is 8-bit; parity check is ON; stop bit is 2-bit Answer: B

QUESTION 144: ( ) is the network operating system, of which Huawei has complete independent property rights A. IOS B. VOS C. VRP D. NOS Answer: C

QUESTION 145: On one Ethernet segment, 30 PCs connect the Internet through the S0 interface of Quidway router. The following configuration is performed to Quidway router: [Quidway]interface Ethernet 0 [Quidway-Ethernet0]ip address 192.168.1.1 255.255.255.0 [Quidway-Ethernet0]quit [Quidway]interface serial 0 [Quidway-serial0]ip address 211.136.3.6 255.255.255.252 [Quidway-serial0]link-protocol ppp The default gateway of one PC is configured as 192.168.2.1. Then what will the router do with the packet sent from this PC? A. The router will deem that the packet sent from this PC is from different network segment, and will forward the packet B. The router will automatically amend the IP address of this PC, and forward the packet C. The router will discard the packet. In this case, the router needs to be restarted, and the router will correct the wrong configuration automatically D. The router will discard the packet, and will not do anything. The PC gateway needs to be reconfigured to 192.168.1.1 Answer: D

QUESTION 146: In which of the following manners can Quidway router be configured? A. Transmitting configuration file through FTP B. Configuring through remote login

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C. Configuring through dial D. Configuring through console port Answer: ABCD

QUESTION 147: To view the original configuration data stored in the flash or NVRAM of the router, which of the command should be input: A. display current-configuration B. display interface C. display version D. display configfile E. display saved-configuration Answer: C

QUESTION 148: The router can be configured by following ways: A. Configuration through CONSOLE port B. Remote configuration through dial-up port C. Configuration via TELNET D. Configuration via mute terminal E. Transmit configuration file through FTP Answer: ABCDE

QUESTION 149: To configure the router for the first time, which of the following configuration means should be adopted: A. Configuration through CONSOLE port B. Remote configuration through dial-up port C. Configuration via TELNET D. Configuration via terminal E. Transmit configuration file through FTP Answer: A

QUESTION 150: The correct attribute settings of the computer serial port connected with the router

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include: A. Rate: 9600bps B. Data bit: 8 bits C. parity check bit: none D. Stop bit: 1 bit E. Flow control: software Answer: ABCD

QUESTION 151: To start FTP service on the router requires which of the following commands: A. ftp-server open B. ftp-server enable C. ftp server open D. ftp server running Answer: B

QUESTION 152: Quidway router can be configured in the following views: A. system configuration view B. Routing protocol configuration view C. interface configuration view D. voice view E. PIM view Answer: ABCDE

QUESTION 153: Which of the following commands is used to direct return the system configuration view: A. exit B. disable C. quit D. return Answer: D

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QUESTION 154: Which of the following way can be used to upgrade router() A. via console B. via ftp C. via tftp D. via aux Answer: ABCD

QUESTION 155: In the system configuration view of Quidway router, input command: display interface serial 0. It shows that the physical interface is up and line protocol is down. What is the possible fault? A. The setting of interval to live is not consistent B. The clock frequency is not consistent with that of the opposite end C. Link negotiation fails to pass D. There is no carrier information from the opposite end Answer: ABC

QUESTION 156: Which of the following command can show the configuration information in RAM of Quidway router? A. display processes memory B. display current-configuration C. display interface D. display saved-configuration Answer: B

QUESTION 157: To change the name of your Quidway router to myrouter, which command should be input? A. [Quidway]hostname myrouter B. [Quidway]host myrouter C. [Quidway]sysname myrouter D. [Quidway]name myrouter

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Answer: C

QUESTION 158: To restart routers, which command should be used? A. reload B. save C. reboot D. load Answer: C

QUESTION 159: To save the current configuration information of Quidway router in the flash, which command should be input? A. copy 10.110.1.1 config.txt config B. download config C. save D. reboot Answer: C

QUESTION 160: Which of the following statements concerning DEBUGGING command are true? A. The command undo debugging all will close all the debug outputs on Quidway router B. Please be cautious to use debugging all command, because debugging all command will severely affect the performance of the system C. By default, the output information of the debugging command is sent to the virtual terminal that originates the debugging command D. debugging command should be used when the load of the router is small E. Generally, the output information of display command has more affection on the performance of the network than that of debugging command does Answer: ABD

QUESTION 161: Which configuration command in Quidway router is used for output of logging information to external computer and saving it as file?

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A. info-center enable B. info-certer console C. info-center monitor D. info-center loghost Answer: D

QUESTION 162: Input " display interface serial 0" command on Quidway router ,the output information is shown as follows: [Quidway]display interface serial 0 Serial0 is up, line protocol is up physical layer is synchronous, baudrate is 64000 bps interface is DCE, clock is DCECLK, cable type is V35 Maximum Transmission Unit is 1500 Internet address is 1.1.1.1 255.255.255.0 Link-protocol is PPP LCP opened, IPCP opened, IPXCP initial, CCP initial, BRIDGECP initial 5 minutes input rate 0.00 bytes/sec, 0.00 packets/sec 5 minutes output rate 0.00 bytes/sec, 0.00 packets/sec Input queue : (size/max/drops) 0/50/0 FIFO queueing: FIFO Output queue: (size/max/drops) FIFO: 0/75/0 input packets:40, bytes:894, no buffers:0 output packets:40, bytes:894, no buffers:0 input errors:0, CRC:0, frame errors:0 overrunners:0, aborted sequences:0, input no buffers:0 DCD=UP DTR=UP DSR=UP RTS=UP CTS=UP Which of the following statement is true? A. Encapsulation type of serial0 interface is PPP B. This command displays configuration information of s0 interface C. The last line shows that physical connectivity of this interface is proper, and all EIA signals that should appear have appeared D. The first line shows that physical layer of interface is activated, and data link layer works properly Answer: ABCD

QUESTION 163: [Quidway]dispaly interface serial 0 Serial0 is manually down, line protocol is down physical layer is synchronous, baudrate is 64000 bps

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interface is DCE, clock is DCECLK, cable type is V35 Maximum Transmission Unit is 1500 Internet address is 1.1.1.1 255.255.255.0 Link-protocol is PPP LCP initial, IPCP initial, IPXCP initial, CCP initial, BRIDGECP initial 5 minutes input rate 2.40 bytes/sec, 0.20 packets/sec 5 minutes output rate 2.40 bytes/sec, 0.20 packets/sec Input queue : (size/max/drops) 0/50/0 FIFO queueing: FIFO Output queue: (size/max/drops) FIFO: 0/75/0 input packets:156, bytes:2286, no buffers:0 output packets:156, bytes:2286, no buffers:0 input errors:0, CRC:0, frame errors:0 overrunners:0, aborted sequences:0, input no buffers:0 DCD=DOWN DTR=UP DSR=DOWN RTS=UP CTS=DOWN Why the interface works improperly? A. Physical interface fails, and interface module should be replaced B. Physical interface is manually powered off, so "undo shutdown" command should be used for activation C. Negotiation of configured PPP does not pass D. Physical layer should be configured to work under asynchronous mode Answer: B

QUESTION 164: CHAP is the three-time handshake authentication protocol. Its first handshake is( ) A. The authenticated party directly transfers the host name and password to the authenticating party B. The authenticating party transfer one section of random message and host name to the authenticated party C. The authenticated party generates one section of random message, encrypts it with its own password, and transfers it along with the host name to the authenticating party Answer: B

QUESTION 165: PPP mainly consists of( ) A. Link control protocol B. Network control protocol C. PPP extended protocol

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D. RADIUS protocol Answer: ABC

QUESTION 166: Which of the following protocols uses CHAP or PAP authentication method? A. HDLC B. PPP C. SDLC D. SLIP Answer: B

QUESTION 167: After PPP authentication fails, it will switch from Authenticate stage to ( ) stage A. Dead B. Network C. Establish D. Terminate Answer: D

QUESTION 168: Which of the following are WAN protocols( ) A. PPP B. X.25 C. SLIP D. Ethernet E. Frame Relay Answer: ABCE

QUESTION 169: Which of the following provide services to WAN by packet switched technology? A. X.25 B. Frame-relay C. Leased line D. Modem dial up

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Answer: AB

QUESTION 170: Asynchronous modem uses traditional telephone network, and works in asynchronous transmission mode. The traditional telephone network has many advantages, but does NOT include( ) A. Low cost B. Dial-on-demand C. Fast connection D. Universal availability Answer: C

QUESTION 171: Among the following protocols, which of them adopt connection-oriented mode to communicate.( ) A. IP B. X.25 C. Ethernet D. Frame Relay Answer: BD

QUESTION 172: In PPP protocol, ( ) is mainly used to negotiate the format and type of the packet transmitted over the link A. Link control protocol B. PPP extended protocol C. Network control protocol D. PAP, CHAP protocol Answer: C

QUESTION 173: HDLC is a kind of ( ) oriented data link layer protocol A. Character B. Bit

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C. Cell D. Packet Answer: B

QUESTION 174: Which of the following protocol is NOT WAN protocol( ) A. PPP B. X.25 C. HDLC D. RIP Answer: D

QUESTION 175: ( ) is two-time handshake protocol, which authenticates the user through transmitting user name and password in plain text over the network. A. PAP B. IPCP C. CHAP D. RADIUS Answer: A

QUESTION 176: ( ) is three-time handshake protocol, whose characteristic is that only user name is transmitted over the network, while the user password is not. Therefore, it is safer. A. PAP B. IPCP C. CHAP D. RADIUS Answer: C

QUESTION 177: Link layer protocols that support synchronous circuit include: A. PPP B. SLIP

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C. HDLC D. SDLC E. X.25 F. LAPB G. Frame Relay Answer: ACDEFG

QUESTION 178: Which of the following are point-to-point link layer protocols: A. X.25 B. HDLC C. ATM D. PPP Answer: BD

QUESTION 179: Which of the following description about PPP protocol are true? A. Any bit stream can be transmitted through transparent transmission B. Its physical layer can be synchronous or asynchronous circuit C. It has various NCP protocols, and can bear multiple network layer protocols D. It has authentication protocol so as to ensure the network security better E. It evolves from SLIP Answer: ABCDE

QUESTION 180: Which of the following are included in PPP protocol family ? A. LCP B. NCPs C. TCP D. PAP/CHAP Answer: ABD

QUESTION 181: Which of the PPP protocol family provide support for the network layer?

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A. IPCP B. LCP C. IPXCP D. SNA Answer: AC

QUESTION 182: In PPP negotiation process, which state after LCP negotiation go through? A. Authenticate B. Network C. Establish D. Terminate Answer: C

QUESTION 183: In PPP negotiation process, which stage is optional ? A. Dead B. Establish C. Authenticate D. Network E. Terminate Answer: C

QUESTION 184: The default link protocol of serial interface of Huawei Quidway routers is ( ). A. PPP B. HDLC C. X.25 D. ATM E. Frame-relay Answer: A

QUESTION 185: Which of the following command is correct, to configure user list on Quidway router?

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A. [Quidway]local-user<user-name>password (cipher/simple) <password> B. [Quidway-serial0]local-user<user-name>password (cipher/simple) <password> C. [Quidway]local-user<user-name>password<password> D. [Quidway-serial0]local-user<user-name>password<password> Answer: A

QUESTION 186: At the interface which is encapsulated with HDLC protocol, the command to set the time interval of state polling timer is: A. hdlc keepalive B. timer hold C. hdlc timeout D. timeout Answer: B

QUESTION 187: In configuring CHAP authentication protocol, the end to be authenticated must requires the configurations including: A. ppp chap user username B. ppp authentication-mode chap [ call-in ] [scheme (default | name-list)] C. local-user user password (simple/cipher) password D. ppp chap password (simple/cipher) password Answer: AC

QUESTION 188: The command to configure the interface bounded under the virtual interface template to work in MP mode is: A. ppp mp B. dialer in-band C. link-protocol mp D. ppp mp work Answer: A

QUESTION 189:

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The command "ppp mp user user-name bind virtual-template number"should be configured in the View: A. Routing protocol configuration view B. system configuration view C. Interface configuration view D. Virtual interface template configuration view Answer: B

QUESTION 190: The configuration of the serial interface 0 of router A is as below: interface Serial 0 link-protocol ppp ppp pap local-user quidway2 password simple hello ip address 2.2.2.1 255.0.0.0 The serial port 0 of router B and the system configuration is as below: local-user quidway2 password simple hello ! interface Serial 0 clock DTECLK1 link-protocol ppp ppp authentication-mode pap ip address 2.2.2.2 255.0.0.0 When the two serial 0 of the two routers are connected, can the two routers be connected to the opposite sides( ) A. Yes B. NO Answer: A

QUESTION 191: The configuration of the router A is as below: local-user huawei password simple quidway ! interface Serial0 clock DTECLK1 link-protocol ppp ppp authentication-mode chap ppp chap user huawei ip address 2.2.2.2 255.0.0.0 The configuration of router B is as below: local-user quidway password simple huawei

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! interface Serial0 link-protocol ppp ppp chap user huawei ip address 2.2.2.1 255.0.0.0 When the two serial 0 of the two routers are connected, can the two routers be connected to the opposite sides( ) A. Yes B. No Answer: B

QUESTION 192: To configure the serial interface of Quidway router to encapsulation PPP, with the authentication of PAP, the command is: A. [Quidway-serial0] link-protocol ppp [Quidway-serial0] ppp authentication-mode pap B. [Quidway-serial0] link-protocol ppp [Quidway-serial0] ppp pap C. [Quidway-serial0] link-protocol ppp [Quidway]ppp authentication-mode pap D. [Quidway] link-protocol ppp [Quidway]interface serial 0 [Quidway-serial0]ppp authentication-mode pap Answer: A

QUESTION 193: Exhibit

As shown in the networking figure, Assume the default gateway configuration of each host is correct. The specific configuration is as follows: Now create configuration... Current configuration

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! version 1.74 local-user Router Certkiller A service-type ppp password simple 123 firewall enable sysname Router Certkiller A encrypt-card fast-switch ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.0.0.1 255.255.255.0 ! interface Serial0 link-protocol ppp ppp chap user Router Certkiller B ip address 10.0.1.1 255.255.255.0 ! interface Serial1 link-protocol ppp ! quit ip route-static 10.0.2.0 255.255.255.0 10.0.1.2 preference 60 ! return Now create configuration... Current configuration ! version 1.74 local-user Router Certkiller B service-type ppp password simple 123 firewall enable sysname Router Certkiller B ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.0.2.1 255.255.255.0 ! interface Serial0 clock DTECLK1 link-protocol ppp

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ppp authentication-mode chap ppp chap user Router Certkiller A ip address 10.0.1.2 255.255.255.0 ! interface Serial1 link-protocol ppp ! quit ip route-static 10.0.0.0 255.255.255.0 10.0.1.1 preference 60 ! return Is the conclusion that PC Certkiller 1 can ping PC Certkiller 2 successfully true? A. True B. False Answer: A


As shown in the networking figure, Assume the default gateway configuration of each host is correct. The specific configuration is as follows: Now create configuration... Current configuration ! version 1.74 local-user Certkiller A service-type ppp password simple 123 firewall enable sysname Certkiller A encrypt-card fast-switch ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp !

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interface Ethernet0 ip address 10.0.0.1 255.255.255.0 ! interface Serial0 link-protocol ppp ppp chap user Certkiller B ppp pap local-user Certkiller A pasword simple 123 ip address 10.0.1.1 255.255.255.0 ! interface Serial1 link-protocol ppp ! quit ip route-static 10.0.2.0 255.255.255.0 10.0.1.2 preference 60 ! return Now create configuration... Current configuration ! version 1.74 local-user Certkiller B service-type ppp password simple 123 firewall enable sysname Certkiller B ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.0.2.1 255.255.255.0 ! interface Serial0 clock DTECLK1 link-protocol ppp ppp authentication-mode chap ppp chap user Certkiller A ip address 10.0.1.2 255.255.255.0 ! interface Serial1 link-protocol ppp ! quit ip route-static 10.0.0.0 255.255.255.0 10.0.1.1 preference 60 ! return

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Is the conclusion that PC Certkiller 1 can ping PC Certkiller 2 successfully true? A. True B. False Answer: A


As shown in the following networking figure, Assume the default gateway configuration of each host is correct. The specific configuration is as follows: Now create configuration... Current configuration ! version 1.74 local-user Certkiller A service-type ppp password simple 123 local-user Certkiller B service-type ppp password simple 123 firewall enable sysname Certkiller A encrypt-card fast-switch ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.0.0.1 255.255.255.0 ! interface Serial0 link-protocol ppp ppp authentication-mode pap ip address 10.0.1.1 255.255.255.0 ! interface Serial1 link-protocol ppp

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! quit ip route-static 10.0.2.0 255.255.255.0 10.0.1.2 preference 60 ! return Now create configuration... Current configuration ! version 1.74 local-user Certkiller A service-type ppp password simple 123 firewall enable sysname Certkiller B ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.0.2.1 255.255.255.0 ! interface Serial0 clock DTECLK1 link-protocol ppp ppp pap local-user Certkiller A password simple 123 ip address 10.0.1.2 255.255.255.0 ! interface Serial1 link-protocol ppp ! quit ip route-static 10.0.0.0 255.255.255.0 10.0.1.1 preference 60 ! return Is the conclusion that PC Certkiller 1 can ping PC Certkiller 2 successful true? A. True B. False Answer: A

QUESTION 196: Frame relay LMI usually occupies which ones of the following DLCI( ) A. 0

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B. 16 C. 1007 D. 1023 Answer: AD

QUESTION 197: Which of the following network type can solve the problem that split horizon causes in Frame Relay( ) A. Point-to-point, sub-interface B. Point-to-multipoint, partial connection C. Point-to-multipoint, full meshed Answer: AC

QUESTION 198: Frame relay is characterized by ( ) A. Virtual circuit based B. Bandwidth statistical multiplexing C. Confirmation and retransmission mechanism D. One kind of fast packet switching technique Answer: ABD

QUESTION 199: Frame relay and X.25 are same in that they( ) A. Are both based on virtual circuit B. Are both packet switching technique C. Are both only layer 2 protocol D. Both support congestion detection, confirmation and retransmission, flow control mechanism Answer: AB

QUESTION 200: Which of the following are parameters of Frame Relay( ) A. TTL (Time to Live) B. Bc

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C. CIR (Committed Information Rate) D. Be Answer: BCD

QUESTION 201: PVC can be only at ( ) stage A. Call setup B. Data transmission C. Call clearing D. Link setup Answer: B

QUESTION 202: Which of the following statements concerning DLCI is NOT true( ) A. DLCI has only local meaning B. DLCI is assigned by the DCE side C. The range available of DLCI for the user is 16-1007 D. Different physical interface can be configured with same DLCI E. Same physical interface can be configured with same DLCI Answer: E

QUESTION 203: Which of the following are functions of LMI protocol( ) A. To maintain the link status B. To maintain the PVC status C. To notify the addition of PVC D. To notify the deletion of PVC Answer: ABCD

QUESTION 204: The format of frame that the Frame Relay adopts is( ) A. LAPB B. LAPD C. LAPF

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D. SDLC Answer: C

QUESTION 205: Which of the following statements concerning DTE are true( ) A. DTE refers to data terminal equipment B. DTE refers to data circuit terminal equipment C. DTE can be computer or computer terminal, or other data terminal D. DTE is Modem in analog technology system, while it may be data service unit in digital technology system Answer: AC

QUESTION 206: In the Frame Relay network, the Frame Relay monitors the status of PVC through ( ) protocol A. DLCI B. BECN C. FECN D. LMI Answer: D

QUESTION 207: The Frame Relay only performs the function of ( ), leaving flow control, error correcting and so on to the intelligent terminal, thus greatly simplifying the protocol between the nodes. A. Data link layer and network layer B. Network layer and transport layer C. Transport layer and session layer D. Physical layer and Data link layer Answer: D

QUESTION 208: As a widely-used WAN technique, Frame Relay has many outstanding characteristics, which does NOT include( )

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A. The cell length is fixed. B. It is an international standard C. It simplifies the function of the third layer of X.25 D. It performs statistical multiplexing, frame transparent transmission and error detection at the data link layer Answer: A

QUESTION 209: The maximum frame transmission length of Frame Relay is( ) A. 128 bytes B. 256 bytes C. 1024 bytes D. 1600 bytes Answer: D

QUESTION 210: Which of the following terms describes the minimum rate, at which the Frame Relay network uses PVC to transmit data? A. Local Access Rate B. Bc(Commited Burst) C. CIR(Commited Information Rate) D. FECN(Forward Explicit Congestion Notification) Answer: C

QUESTION 211: Which of the following about DLCI is true? A. Used to identify virtual circuit B. The range of DLCI available to the user is 16~1007 C. It is only valid at the local interface and the opposite interface directly connected with it. It is not globally valid D. In a Frame Relay network, different physical interfaces may have DLCL with the same number Answer: ABCD

QUESTION 212:

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Inverse ARP functions mainly to: A. Find the hardware address of the equipment through the network address of the network equipment B. Search the number of connected DLCI C. In the Frame Relay, search the protocol address of the opposite equipment connected with the virtual circuit D. In the Frame Relay network, generate the mapping from remote protocol address to DLCI Answer: CD

QUESTION 213: Which of the following LMI types do Huawei routers support( ) A. ANSI B. IETF C. Q933A D. nonstandard Answer: ACD

QUESTION 214: When using Frame Relay encapsulation, Huawei router supports ( ) formats A. IETF B. ANSI C. Q933 Appendix A D. nonstandard Answer: AD

QUESTION 215: When configuring Frame Relay static MAP on the router, ( ) parameters should be specified A. Local DLCI B. Opposite DLCI C. Local network address D. Opposite network address Answer: AD

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QUESTION 216: To view whether the serial interface s0 on Quidway router works in DTE or DCE, which of the following commands should be used? A. display controller serial B. display current-configuration C. display interface serial 0 D. display saved-configuration Answer: C

QUESTION 217: To view the encapsulation type of the Frame Relay network on Quidway routers, which of the following commands should be used( ) A. display fr map-info B. display fr pvc-info C. display fr lmi-info D. display interface Answer: D

QUESTION 218: On the Frame Relay network on Quidway series routers, how many LMI types are supported in total( ) A. 1 B. 2 C. 3 D. 4 Answer: C

QUESTION 219: While configuring the Frame Relay network with Huawei Quidway routers and Cisco routers, how should you configure the link encapsulation format of Huawei routers? (Assuming that Cisco routers adopt default encapsulation format) A. ansi B. ietf C. nonstandard D. Q.933a

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Answer: C

QUESTION 220: After configuring the mapping of the local DLCI and opposite IP address of Frame Relay, which of the following commands should be used to check the configuration? A. display fr pvc-info B. display fr map-info C. display fr statistics D. display fr lmi-info Answer: B

QUESTION 221: When configuring Frame Relay network on the Huawei router, if Inverse ARP protocol is used, then you need not configure static address mapping, because Inverse ARP protocol can generate address mapping dynamically. A. True B. False Answer: A

QUESTION 222: While configuring Frame Relay sub-interface, which types of sub-interfaces are optional? A. Point-to-point B. NBMA C. multipoint D. broadcast Answer: AC

QUESTION 223: When the interface is encapsulated with which of the following protocols, it can create a sub-interface: A. X.25 B. PPP C. Frame-Relay

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D. LAPB E. HDLC F. SLIP Answer: AC

QUESTION 224: The command to enable the dynamic inverse ARP to the interface which has been encapsulated with Frame Relay protocol is: A. fr inarp ip B. fr reverse-arp C. inverse-arp D. reverse-arp Answer: A

QUESTION 225: If the router enable pvc switching,the interface that has been encapsulated frame-relay should be: A. DTE B. DCE C. NNI D. UNI Answer: BC

QUESTION 226: The command to view frame-relay pvc routing table is: A. display fr pvc-info B. display fr switch-table C. display fr pvc switch-table D. display fr map-info Answer: B

QUESTION 227: You configure one Frame Relay PVC on Quidway router, and find that it fails to take effective. What are the possible causes?

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A. Same dlci number is configured on one router B. The LMI type is not configured correctly C. The Frame Relay encapsulation type is not configured correctly D. The DLCI number is not configured correctly Answer: BCD

QUESTION 228: In Frame Relay network, it is necessary to turn on administration switch of Frame Relay to supervise network running status and to locate problems. The command used by Quidway series router is: A. debugging fr event B. debugging fr packet C. debugging fr lmi D. debugging fr arp E. debugging fr all Answer: C


As shown in the networking figure, Assume the default gateway configuration of each host is correct. The specific configuration is as follows: Now create configuration... Current configuration ! version 1.74 firewall enable sysname Certkiller A fr switching encrypt-card fast-switch ! interface Aux0 async mode flow

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phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.0.0.1 255.255.255.0 ! interface Serial0 link-protocol fr ip address 10.0.1.1 255.255.255.0 fr interface-type DCE fr dlci 100 quit ! interface Serial1 link-protocol ppp ! quit ip route-static 10.0.2.0 255.255.255.0 10.0.1.2 preference 60 ! return Now create configuration... Current configuration ! version 1.74 firewall enable sysname Certkiller B ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.0.2.1 255.255.255.0 ! interface Serial0 clock DTECLK1 link-protocol fr ip address 10.0.1.2 255.255.255.0 ! interface Serial1 link-protocol ppp ! quit ip route-static 10.0.0.0 255.255.255.0 10.0.1.1 preference 60 !

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return Is the conclusion that PC Certkiller 1 can ping PC Certkiller 2 successfully true? A. True B. False Answer: A


As shown in the networking figure, Assume the default gateway configuration of each host is correct. The specific configuration is as follows: Now create configuration... Current configuration ! version 1.74 firewall enable sysname Certkiller A fr switching encrypt-card fast-switch ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.0.0.1 255.255.255.0 ! interface Serial0 link-protocol fr ip address 10.0.1.1 255.255.255.0 fr interface-type DCE fr map ip 10.0.1.1 dlci 100 fr dlci 100 quit

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! interface Serial1 link-protocol ppp ! quit ip route-static 10.0.2.0 255.255.255.0 10.0.1.2 preference 60 ! return Now create configuration... Current configuration ! version 1.74 firewall enable sysname Certkiller B ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.0.2.1 255.255.255.0 ! interface Serial0 clock DTECLK1 link-protocol fr ip address 10.0.1.2 255.255.255.0 fr map ip 10.0.1.2 dlci 100 ! interface Serial1 link-protocol ppp ! quit ip route-static 10.0.0.0 255.255.255.0 10.0.1.1 preference 60 ! return Is the conclusion that PC Certkiller 1 can ping PC Certkiller 2 successfully correct? A. True B. False Answer: B

QUESTION 231: The methods to solve routing loop problem include

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A. Split horizon B. Holddown timer C. Router restart D. Defining the maximum number of the routing metric Answer: ABD

QUESTION 232: Which of the following gives a correct description of routing protocol( ) A. It is a kind of protocol that allows packet to be transmitted between hosts B. It is a way, in which the format and usage of the fields in the packet are defined C. It is a kind of protocol that executes one algorithm to perform route selection D. It is a kind of protocol that specifies mode and time of MAC address and IP address binding Answer: C

QUESTION 233: Which of the following is NOT included in the routing table( ) A. Source address B. Next hop address C. Destination network D. Route metric Answer: A

QUESTION 234: Which of the following statements are true( ) A. The computation of route priority and that of route metric are the same. B. The computation of route metric may be based on one single characteristic of the path, or on multiple attributes of the path C. If several dynamic routing protocol all finds the best route to the same network, they will all be added to the routing table D. The dynamic routing protocol judges the route according to the metric of route, and no two routing protocols are the same in judging method Answer: BD

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QUESTION 235: IGP works in the range of( ) A. area B. LAN C. autonomous system D. subnet Answer: C

QUESTION 236: Distance vector protocol includes( ) A. RIP B. BGP C. IS-IS D. OSPF Answer: AB

QUESTION 237: Which of the following statements concerning distance vector algorithm is NOT true( ) A. Distance vector algorithm will not result in routing loop problem B. Distance vector algorithm is implemented by the transfer of routing information C. The expression method of Distant-Vector routing protocol is (destination network, metric) D. The protocol that uses distance vector algorithm only acquires information from its neighbors Answer: A

QUESTION 238: If one internal network has only one outlet to the outside, it is most desirable to configure( ) A. Default route B. Host route C. Dynamic route Answer: A

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QUESTION 239: BGP is a protocol that propagates routing information between( ) A. Hosts B. Subnets C. Areas D. Autonomous systems (AS) Answer: D

QUESTION 240: In the router, if there are multiple routes to same destination network, which of the following factors are considered to decide upon the best route( ) A. The highest level of priority B. The destination network segment of the route C. The metric of the route D. nexthop Answer: AC

QUESTION 241: ( ) route protocols have routing loop problem. A. RIP V1 B. RIP V2 C. OSPF D. IS-IS Answer: AB

QUESTION 242: Which of the following statements concerning data link-state algorithm are true( ) A. The link-state is the description of route B. The link-state is the description of the network topology structure C. Link-state algorithm will not cause routing loop D. OSPF and RIP both use link-state algorithm Answer: BC

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QUESTION 243: Which of the following does NOT belong to dynamic routing protocol( ) A. RIP B. ICMP C. BGP D. OSPF Answer: B

QUESTION 244: Suppose three kinds of routing protocol, RIP, OSPF and static Route each acquires one route to the destination network, by default, Huawei router will finally select ( ) Route as the optimal Route A. RIP B. OSPF C. Static Route Answer: B

QUESTION 245: IGP includes which of the following protocols( ) A. RIP B. BGP C. IS-IS D. OSPF Answer: ACD

QUESTION 246: Routing loop problem will give rise to( ) A. Slow convergence B. Waste of line bandwidth C. Router restart D. Inconsistent route Answer: ABD

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QUESTION 247: Which of the following routing table options need to be configured manually by the network administrator( ) A. Static route B. Direct route C. Default route D. Dynamic route Answer: AC

QUESTION 248: To configure gateway on the computer running Windows98 is similar to configuring ( ) on the router. A. Direct route B. Default route C. Static route D. Indirect route Answer: B

QUESTION 249: Concerning RIP protocol, which of the following statements are true( ) A. RIP protocol is a kind of IGP B. RIP protocol is a kind of EGP C. RIP protocol is a kind of distance vector routing protocol D. RIP protocol is a kind of link-state routing protocol Answer: AC

QUESTION 250: RIP protocol is based on( ) A. UDP B. TCP C. ICMP D. Raw IP Answer: A

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QUESTION 251: By default, how long the RIP protocol will mark the entry as unreachable when it can not receive routing information from its neighbour( ) A. 90s B. 120s C. 180s D. 240s Answer: C

QUESTION 252: The method to solve routing loop includes( ) A. Split horizon B. Holddown timer C. Poison Reverse D. Trigger update Answer: ABCD

QUESTION 253: After RIP protocol receives the route information sent by one neighbor gateway, which of the following processing of the metric are true ( ) A. For the route item not included in the routing table, it will be added only when the metric is less than unreachable B. For the route item already included in the routing table, when the gateway sends message is the same, the metric of the route item will be updated only when the metric decreases C. For the route item already included in the routing table, when the gateway sends message is different, the metric of the route item will be updated only when the metric decreases D. For the route item already included in the routing table, when the gateway sends message is the same, the metric of the route item will be updated, as long as the metric changes Answer: ACD

QUESTION 254: Concerning RIP V1 and RIP V2, which of the following statements are true( )

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A. RIP V1 message supports subnet mask B. RIP V2 message supports subnet mask C. RIP V2 uses route summary function by default D. RIP V1 only supports simple password authentication of message, while RIP V2 supports MD5 authentication Answer: BC

QUESTION 255: In RIP, when metric equals to ( ), it means unreachable A. 8 B. 10 C. 15 D. 16 Answer: D

QUESTION 256: RIP protocol adopts route holddown mechanism for the purpose of( ) A. Saving network bandwidth B. Preventing the occurrence of routing loop in the network C. Diffusing the route unreachable information among the whole network D. Notifying the neighbor route of which routes are acquired from it Answer: B

QUESTION 257: In RIP routing protocol, which of the following statements concerning the methods of reducing route self-loop are true: A. Triggered update is used to reduce the probability of route self-loop occurrence B. Split horizon can only eliminate the self-loop between two routers C. The setting of suppression time is likely to result in slow convergence of route D. RIP protocol specifies maximum hop count, so as to mitigate the consequence resulting from route self-loop Answer: ABCD

QUESTION 258: Which of the following protocols are routed protocol?

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A. IP B. IPX C. RIP D. NETBEUI Answer: AB

QUESTION 259: Which of the following protocols are routing protocol(s): A. RIP B. IS-IS C. OSPF D. PPP E. IP F. IPX G. BGP Answer: ABCG

QUESTION 260: Which of the following techniques are helpful to avoid routing loop? A. Adopting link status route B. Split horizon C. Holddown D. Defining maximum hop count E. Poison reverse Answer: ABCDE

QUESTION 261: Distance vector routing protocol uses split horizon technique for the purpose of: A. Avoiding the occurrence of routing loop between the adjacent routers B. Ensuring the transmission of routing update packet in the direction of receiving route C. Coordinating with holddown mechanism, to provide more reliability for the computation of interval D. Replacing poison reverse algorithm Answer: AC

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QUESTION 262: In light of the different destinations, all routes in the routing table can be divided into: A. Subnet route B. Direct connected route C. Default route D. Host route E. Static route Answer: AD

QUESTION 263: Static route has the following advantages: A. Easy for management B. Automatic routing update C. Improve network security D. Save bandwidth E. Fast convergence Answer: ACD

QUESTION 264: The routing protocols based on distance vector algorithm include: A. ICMP B. RIP C. OSPF D. IS-IS Answer: B

QUESTION 265: For RIP protocol, the maximum hop count of destination network (the count of routers it passes by): A. 12 B. 15 C. 16 D. No limit

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Answer: B

QUESTION 266: The protocols, which support VLSM(variable length subnet mask), include: A. RIP v1 B. RIP v2 C. OSPF D. IS-IS Answer: BCD

QUESTION 267: When the interface runs in RIP-2 broadcast mode, it is able to receive the packets including: A. RIP-1 broadcast packet B. RIP-1 multicast packet C. RIP-2 broadcast packet D. RIP-2 multicast packet Answer: AC

QUESTION 268: Which of the following statements about route priority is true? A. It is only used between RIP and OSPF B. It is used between different routing protocols C. It is an important element for route D. By default, the priority of directly connected route is 0 Answer: BCD

QUESTION 269: Which of the following statements do you think is NOT true? A. The priority of each static route can be different B. By default, the order of route priority is OSPF > RIP C. Routing algorithm produces a sort of metric to indicate whether the route is good or bad. Normally, the bigger the metric, the better the path D. For the convenience of network management, Internet is divided into several

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autonomous systems, each of which is made up of routers that run the same routing protocol Answer: CD

QUESTION 270: Which of the following descriptions are true? The routing table contains the following key items: A. Destination address: Used to identify the destination host address or destination network address of IP packet B. Network mask: Along with the destination address, it identifies the address of the network segment where the destination host or router is C. Outbound interface: Describe from which interface of the router that IP packet should be forwarded D. Next hop IP address: It describes the next router which IP packet passes by Answer: ABCD

QUESTION 271: In which cases the external routing protocol is used? A. Transmission from node to network B. Data transmission within simple automatic system C. Communication between simple automatic systems D. RIP learns route from OSPF Answer: C

QUESTION 272: Which of the following statements about static route is true? A. Used for the direction structure in the routing table with unclear next hop B. Configured clearly and included in the routing table, it is the prior route selected by the dynamic routing protocol for routing C. It is the route used for automatic adjustment of network topology D. It is the route not adjusted automatically in the network topology Answer: D

QUESTION 273: There are two items in the routing table of one router:

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Destination/Mask Proto Pref Metric Nexthop Interface 9.0.0.0/8 OSPF 10 50 1.1.1.1 Serial0 9.1.0.0/16 RIP 100 5 2.2.2.2 Ethernet0 If the router needs to forward message with the destination address to be 9.1.4.5, which of the following statements is true: A. Selecting the first item, because OSPF protocol is of higher priority B. Selecting the second item, because the metric of RIP protocol is lower C. Selecting the second item, because the outlet is Ethternet0, which is faster than Serial0 in speed D. Selecting the second item, because this route item matches more accurately with the destination address 9.1.4.5 Answer: D

QUESTION 274: On Quidway series routers, the direct connected route in the routing table possibly comes from: A. The host route of the own interfaces of the router B. The route of network segment where the interfaces of the router C. The host route of the interface of the opposite router directly connected to the said router D. Default route Answer: ABC

QUESTION 275: The command used to disable the route aggregation function of RIP protocol is( ) A. undo route rip B. summany C. undo summany D. undo network 10.0.0.0 Answer: C

QUESTION 276: Which of the static route configurations are true A. ip route-static 129.1.0.0 16 serial 0 B. ip route-static 10.0.0.2 16 129.1.0.0 C. ip route-static 129.1.0.0 16 10.0.0.2

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D. ip route-static 129.1.0.0.255.255.0.0 10.0.0.2 Answer: ACD


Suppose there is a networking case like this: Two Quidway router(RTA and RTB) are connected through the serial port. The IP address of the serial portof RTAis 10.110.0.1/30, and that of RTB is 10.110.0.2/30. The IP address of the local LAN, to which RTA is connected through Ethernet ports, is 11.110.0.0/16, and that of RTB is 11.111.0.0/16. RIP V1 (only RIP V1) protocol is started on all the interfaces above. Then which of the following statements are true: A. The computers in the local LAN of RTA can visit the computers in the local LAN of RTB B. The computers in the local LAN of RTB can visit the computers in the local LAN of RTA C. The computers in the local LAN of RTA can not visit the computers in the local LAN of RTB D. The computers in the local LAN of RTB can not visit the computers in the local LAN of RTA Answer: CD

QUESTION 278: On Quidway router, which command should be used to view the routing table of the network? A. display ip routing-path B. display ip routing-table C. display interface D. display current-configuration E. display ip rip Answer: B

QUESTION 279: The difference between the keywords reject and blackhole in static route configuration is:

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A. The packet sent to reject route is discarded, and the source host is not notified B. The packet sent to blackhole route is discarded, and the source host is not notified C. The packet sent to reject route is discarded, but the packet sent to blackhole route is not discarded D. The packet sent to blackhole route is discarded, but the packet sent to reject route is not discarded E. The packet sent to reject route is discarded, and the source host is notified F. The packet sent to blackhole route is discarded, and the source host is notified Answer: BE

QUESTION 280: Which of the following statements about the default route is true? A. Default route is used as prior B. Default route is the last route to be used C. Default route is a special type of static route D. Default route is a special type of dynamic route Answer: BC


In the networking diagram, to configure a default route leading to the network segment 129.2.0.0 on Router Certkiller A, the correct configuration command should be: A. [ Certkiller A] ip route-static 129.2.0.0 255.255.0.0 10.0.0.2 B. [ Certkiller A] ip default-route 129.2.0.0 255.255.0.0 10.0.0.2 C. [ Certkiller A] ip route-static 0.0.0.0 0.0.0.0 10.0.0.2 D. [ Certkiller A-Serial0] ip route-static 0.0.0.0 0.0.0.0 10.0.0.2 Answer: C

QUESTION 282: To configure RIP protocol with Router A, and enable RIP protocol in the network segment directly connected with interface S0 (IP address is 10.0.0.1/24), the first command used in RIP configuration view:

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A. router rip B. router rip 10.0.0.0 C. network 10.0.0.1 D. network 10.0.0.0 Answer: D

QUESTION 283: The command to enable RIP protocol at all the interfaces of the router is: A. network all B. neighbor C. enable all D. rip all Answer: A

QUESTION 284: The routing table of one router is as below: Route Tables: Destination/Mask Proto Pref Metric Nexthop Interface 0.0.0.0/0 Static 0 0 2.2.2.1 Serial0 2.0.0.0/8 Direct 0 0 2.2.2.1 Serial0 2.2.2.1/32 Direct 0 0 2.2.2.1 Serial0 2.2.2.2/32 Direct 0 0 127.0.0.1 LoopBack0 3.0.0.0/8 Direct 0 0 3.3.3.1 Ethernet0 3.3.3.1/32 Direct 0 0 127.0.0.1 LoopBack0 10.0.0.0/8 Static 60 0 2.2.2.1 Serial0 127.0.0.0/8 Static 0 0 127.0.0.1 LoopBack0 127.0.0.1/32 Direct 0 0 127.0.0.1 LoopBack0 When the router receives from the Ethernet interface one packet bound for 11.1.1.1 host, what will the router do( ) A. Discard B. Forward from Serial0 C. Forward from Ethernet0 D. Forward from LoopBack0 Answer: B

QUESTION 285: The routing table of one router is as below:

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Route Tables: Destination/Mask Proto Pref MetricNexthopInterface 2.0.0.0/8 Direct 0 0 2.2.2.1 Serial0 2.2.2.1/32 Direct 0 0 2.2.2.1 Serial0 2.2.2.2/32 Direct 0 0 127.0.0.1 LoopBack0 3.0.0.0/8 Direct 0 0 3.3.3.1 Ethernet0 3.3.3.1/32 Direct 0 0 127.0.0.1LoopBack0 10.0.0.0/8 Static 60 0 2.2.2.1 Serial0 127.0.0.0/8 Static 0 0 127.0.0.1 LoopBack0 127.0.0.1/32 Direct 0 0 127.0.0.1 LoopBack0 When the router receives from the Ethernet interface one packet bound for 10.1.1.1 host, what will it do( ) A. Forward to 2.2.2.1 from Serial0 B. Forward to 2.2.2.1 from Ethernet0 C. Forward to the destination host from Serial0 D. Forward to the destination host from Ethernet0 Answer: A


As shown in the diagram, RIP V1 protocol runs in the network. When router Certkiller 2 sends route update information to router Certkiller 3, which network segment will it send to, by default? A. 10.0.0.0 B. 10.1.0.0/16 C. 10.1.1.0 D. 10.1.1.0/24, 10.1.2.0/24 Answer: A

QUESTION 287: To configure Huawei Quidway router to run RIP v2 protocol, which of the following configuration is correct? A. [Quidway-ethernet0] rip version 2 B. [Quidwayr-rip] rip version 2 C. [Quidway] rip version 2 D. [Quidway-rip] ip rip version 2

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Answer: A

QUESTION 288: Router Certkiller A and Router Certkiller B are connected by serial interface. The configuration of Router Certkiller A is: [Quidway]display current-configuration Now create configuration... Current configuration ! version 1.74 firewall enable fr switching encrypt-card fast-switch ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.1.1.1 255.255.0.0 rip version 2 multicast ! interface Serial0 clock DTECLK1 link-protocol fr ip address 2.1.1.1 255.0.0.0 rip version 2 multicast fr interface-type DCE fr dlci 100 quit ! interface Serial1 link-protocol ppp ! quit rip undo summary network all peer 2.1.1.2 ! quit ! return

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The configuration of router Certkiller B is: [Router]display current-configuration Now create configuration... Current configuration ! version 1.74 firewall enable ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.2.1.1 255.255.0.0 rip version 2 multicast ! interface Serial0 link-protocol fr ip address 2.1.1.2 255.0.0.0 rip version 2 multicast ! interface Serial1 link-protocol ppp ! quit rip undo summary network all peer 2.1.1.1 ! quit ! return WAN stands for serial link between Router Certkiller A serial interface and Router Certkiller B serial interface.LAN stands for the link between Router Certkiller A Ethernet interface and Router Certkiller B Ethernet interface. Which of the following statements is true( ) A. Both WAN and LAN can be connected B. Neither WAN, nor LAN can be connected C. The WAN on two ends can be connected, while LAN can not D. The WAN on two ends can not be connected, while LAN can be connected Answer: A

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As shown in the following networking figure. Assume the default gateway configuration of each host is correct. The specific configuration is as follows: Now create configuration... Current configuration ! version 1.74 firewall enable sysname Certkiller A encrypt-card fast-switch ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.0.0.1 255.255.255.0 ! interface Serial0 clock DTECLK1 link-protocol ppp ip address 10.0.1.1 255.255.255.0 ! interface Serial1 link-protocol ppp ! quit rip network all ! quit ! return Now create configuration...

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Current configuration ! version 1.74 firewall enable sysname Certkiller B ! acl 101 match-orderauto rule normal permit ip source 10.0.2.2 0.0.0.0 destination 10.0.0.2 0.0.0.0 rule normal deny ip source any destination any ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.0.2.1 255.255.255.0 ! interface Serial0 link-protocol ppp ip address 10.0.1.2 255.255.255.0 firewall packet-filter 101 outbound ! interface Serial1 link-protocol ppp ! quit rip network all ! quit ! return Is the conclusion that PC Certkiller 1 can ping PC Certkiller 2 successfully true? A. True B. False Answer: B

QUESTION 290: Two Quidway routers are connected via serial interface 0. PC Certkiller 1 (its IP address is 192.168.1.2) is connected to Ethernet interface 0 of Router Certkiller A, and PC Certkiller 2 (its IP address is 192.168.2.2) is connected to Ethernet interface 0 of Router Certkiller B. PC default gateway configuration is correct.

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Router configuration is as follows: [ Certkiller A]display current-configuration Now create configuration... Current configuration ! version 1.74 firewall enable sysname Certkiller A encrypt-card fast-switch ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 192.168.1.1 255.255.255.0 ! interface Serial0 clock DTECLK1 link-protocol ppp ip address 10.1.1.1 255.255.255.0 rip version 2 multicast ! interface Serial1 link-protocol ppp ! quit rip undo summary network 10.0.0.0 ! quit ! return [ Certkiller B]display current-configuration Now create configuration... Current configuration ! version 1.74 firewall enable sysname Certkiller B ! interface Aux0 async mode flow phy-mru 0

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link-protocol ppp ! interface Ethernet0 ip address 192.168.2.1 255.255.255.0 ! interface Serial0 link-protocol ppp ip address 10.1.1.2 255.255.255.0 rip version 2 multicast ! interface Serial1 link-protocol ppp ! quit rip undo summary network 10.0.0.0 ! quit ! return Which of the following statement is true? A. PC Certkiller 1 can ping PC Certkiller 2 successfully B. PC Certkiller 1 can not ping PC Certkiller 2 successfully C. Certkiller A can ping Certkiller B successfully D. Certkiller A can not ping Certkiller B successfully Answer: BC


In the network as shown in Figure, Quidway router configuration command is as follows (Suppose all PCs default gateway configuration is correct): [ Certkiller A]display current-configuration Now create configuration... Current configuration !

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version 1.74 firewall enable sysname Certkiller A ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 192.168.1.1 255.255.255.0 ! interface Serial0 clock DTECLK1 link-protocol ppp ip address 10.1.1.2 255.255.255.0 ! interface Serial1 link-protocol ppp ip address 10.1.3.1 255.255.255.0 ! quit rip network all ! quit ! return [ Certkiller B]display current-configuration Now create configuration... Current configuration ! version 1.74 firewall enable sysname Certkiller B ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 192.168.2.1 255.255.255.0 ! interface Serial0 link-protocol ppp

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ip address 10.1.1.1 255.255.255.0 ! interface Serial1 link-protocol ppp ip address 10.1.2.1 255.255.255.0 ! quit rip network all ! quit ! return [ Certkiller C]display current-configuration Now create configuration... Current configuration ! version 1.74 firewall enable sysname Certkiller C ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ! interface Serial0 clock DTECLK1 link-protocol ppp ip address 10.1.2.2 255.255.255.0 ! interface Serial1 clock DTECLK1 link-protocol ppp ip address 10.1.3.2 255.255.255.0 ! quit rip network all ! quit ! return Which of the following statement is true?

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A. PC Certkiller 1 can ping PC Certkiller 2 successfully B. PC Certkiller 1 can not ping PC Certkiller 2 successfully C. Certkiller A can ping Certkiller B successfully D. Certkiller A can not ping Certkiller B successfully Answer: AC

QUESTION 292: Input "display ip routing-table" command on Quidway router,the echoes are shown as follows: [Quidway]display ip routing-table Routing Tables: Destination/Mask Proto Pref Metric Nexthop Interface 10.1.1.0/24 RIP 100 1 10.1.3.1 Serial1 10.1.2.0/24 Direct 0 0 10.1.2.1 Serial0 10.1.3.1/32 Direct 0 0 10.1.3.1 Serial1 10.1.3.2/32 Direct 0 0 127.0.0.1 LoopBack0 127.0.0.0/8 Direct 0 0 127.0.0.1 LoopBack0 127.0.0.1/32 Direct 0 0 127.0.0.1 LoopBack0 192.168.1.0/24 RIP 100 1 10.1.3.1 Serial1 192.168.2.0/24 RIP 100 1 10.1.2.1 Serial0 Which of the following statement is true? A. This command is to display how does this router reach destination network B. RIP shows that this piece of routing information is dynamically found via RIP routing protocol C. Direct shows that this piece of routing information is directly connected network section of this router D. Nexthop field displays the third layer network equipment of next one, to which, in order to reach destination network, the local router should forward the packet E. Because RIP protocol calculates metric value based on hop count, if metric value is 1, it shows that packet need to be forwarded via one router so as to reach destination network 192.168.1.0 Answer: ABCDE

QUESTION 293: Input "display rip" command on Quidway router, the echoes are shown as follows: [Quidway]display rip RIP is turning on checkzero is on default-cost : 16 no peer network all

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summary is on preference : 100 Which of the following statement is true? A. This command displays current running status and configuration information of RIP B. By default, RIP route protocol priority is 100, but RIP priority can be changed via "priority" command C. This command shows that all interfaces of the router use RIP protocol, and the maximal reachable hop count is 16 D. no peer displays that this router is not directly connected to any other router Answer: A

QUESTION 294: In the access control list, the operator "greater-port portnumber" indicates control over( ) A. Service with the port number less than this number B. Service with the port number greater than this number C. Service with the port number equal to this number D. Service with port number not equal to this number Answer: B

QUESTION 295: On one router, the following command of access list is configured: [Quidway]acl 4 [Quidway-acl-4] rule deny source 202.38.0.0 0.0.255.255 [Quidway-acl-4] rule permit source 202.38.160.1 0.0.0.255, it means:( ) A. It only denies all the accesses of the network segment with the source address 202.38.0.0 B. It only permits all the accesses of the network segment with the destination address 202.38.0.0 C. It checks IP address, denies the hosts in 202.38.0.0 large network segment, but it permits the hosts in 202.38.160.0 small network segment D. It checks the destination IP address, denies the hosts in 202.38.0.0 large network segment, but it permits the hosts in 202.38.160.0 small network segment Answer: C

QUESTION 296: Configure the firewall as below:

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firewall enable The configuration of the port is as below: interface Serial0 ip address 202.10.10.1 255.255.255.0 link-protocol ppp nat outbound interface Ethernet0 ip address 10.110.10.1 255.255.255.0 The internal network of the company is connected at Ethernet0, and accesses the Internet through Serial0 which used NAT. In orderto disable all the computers in the company to access the network segment of 202.38.160.1/16, while allow them to access other websites, which of the following configuration can do it( ) A. acl 1 :rule deny source 202.38.160.1 0.0.255.255 ÔÚSerial0¿Ú£ºfirewall packet-filter 1 inbound B. acl 1 :rule deny source 202.38.160.1 0.0.255.255 ÔÚSerial0¿Ú£ºfirewall packet-filter 1 outbound C. acl 101 :rule deny ip source any destination 202.38.160.1 0.0.255.255 ÔÚEthernet0£ºfirewall packet-filter 101 inbound D. acl 101 :rule deny ip source any destiation 202.38.160.1 0.0.255.255 ÔÚEthernet0£ºfirewall packet-filter 101 outbound Answer: AC

QUESTION 297: On Quidway router, access control list 1 has already been configured and the firewall is enabled. Now, in orderto filter all the packet entering from Serial0 port with rule 1, which of the following can do it( ) A. In the system view, configure: firewall packet-filter 1 serial0 inbound B. In the system view, configure: firewall packet-filter 1 serial0 outbound C. In the Serial0 interface view, configure: firewall packet-filter 1 inbound D. In the Serial0 interface view, configure: firewall packet-filter 1 outbound E. In the Serial0 interface view, configure: ip firewall packet-filter 1 inbound F. In the Serial0 interface view, configure: ip firewall packet-filter 1 outbound Answer: C

QUESTION 298: In TCP and UDP protocol, the port number below ( ) is reserved and is in one-to-one correspondence with the existing services, but the port number above this number can be assigned freely.

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A. 100 B. 199 C. 1024 D. 2048 Answer: C

QUESTION 299: Which of the following option best describes the access control list:( ) A. To prevent any file infected by CIH virus from entering my host B. To only allow system administrator to access my host C. To forbid any user from Telnet my host D. To forbid any user using UNIX operating system from accessing my host Answer: C

QUESTION 300: Configure the following access control list: ¡¡¡¡acl 1 rule permit source 10.110.10.1 0.0.255.255 ¡¡¡¡acl 2 rule permit source 10.110.100.100 0.0.255.255 The relationship between the address ranges controlled by access control list 1 and 2 are( ) A. The ranges of 1 and 2 are same B. The range of 1 is within the range of 2 C. The range of 2 is within the range of 1 D. There is no containing relationship between range 1 and 2 Answer: A

QUESTION 301: The meaning of the following access control list is ( ) [Quidway] acl 100 [Quidway-acl-100] rule deny icmp source 10.1.10.10 0.0.255.255 destination any icmp-type host-unreachable A. The access control list number is 100, and to deny all the host unreachable messages to 10.1.10.10 B. The access control list number is 100, and to deny all the host unreachable messages to 10.1.0.0/16

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C. The access control list number is 100, and to deny all the host unreachable messages from 10.1.0.0/16 D. The access control list number is 100, and to deny all the host unreachable messages from10.1.10.10 Answer: C

QUESTION 302: The meaning of the following access control list is ( ) [Quidway] acl 102 [Quidway-acl-102] rule deny udp source 129.9.8.10 0.0.0.255 destination 202.38.160.10 0.0.0.255 detination-port greater-than 128 A. The access control list number is 102 and to deny the use of UDP protocol with port greater than 128 for communication from the hosts of 202.38.160.0/24 to the hosts of 129.9.8.0/24 B. The access control list number is 102 and to deny the use of UDP protocol with port less than 128 for communication from the hosts of 202.38.160.0/24 to the hosts of 129.9.8.0/24 C. The access control list number is 102 and to deny the use of UDP protocol with port less than 128 for communication from the hosts of 129.9.8.0/24 to the hosts of 202.38.160.0/24 D. The access control list number is 102 and to deny the use of UDP protocol with port greater than 128 for communication from the hosts of 129.9.8.0/24 to the hosts of 202.38.160.0/24 Answer: D

QUESTION 303: If the command "firewall packet-filter" is used on one interface, but no corresponding acl is created. On this interface, which of the following description is true( ) A. Error occurs B. To deny all the packets from "in" C. To deny all the packets from "out" D. To deny all the packets from "in", "out" E. To allow all the packets "in", "out" Answer: E

QUESTION 304: In the access control list, the address and mask 168.18.64.0 0.0.3.255 indicates the IP

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address range of( ) A. 168.18.67.0~168.18.70.255 B. 168.18.64.0~168.18.67.255 C. 168.18.63.0~168.18.64.255 D. 168.18.64.255~168.18.67.255 Answer: B

QUESTION 305: The standard access control list uses ( ) as judging element. A. Size of the packet B. Source address of the packet C. Port number of the packet D. Destination address of the packet Answer: B

QUESTION 306: Which of the following configurations should be performed while configuring access control list( ) A. Setting time segment B. Specifying log host C. Defining access control list D. Applying access control list at the interface Answer: CD

QUESTION 307: By default, the filtering mode of Quidway router access control list is( ) A. Deny B. Permit C. Need to configure Answer: A

QUESTION 308: The meaning of the access control list [Quidway] acl 100

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[Quidway-acl-100] rule deny tcp source 10.1.10.10 0.0.255.255 destination any destination-port equal 80 ,is:( ) A. The access control list number is 100, and to deny the telnet access to 10.1.10.10 B. The access control list number is 100, and to deny the www access to 10.1.0.0/16 C. The access control list number is 100, and to deny the www access from 10.1.0.0/16 D. The access control list number is 100, and to deny rlogin access from 10.1.10.10 Answer: C

QUESTION 309: The access list is as below: acl 4 ¡¡¡¡rule deny source 202.38.0.0 0.0.255.255 ¡¡¡¡rule permit source 202.38.160.1 0.0.0.255 The configuration applied to the interface is as below: ¡¡¡¡[Quidway] firewall default permit ¡¡¡¡[Quidway-Serial0] firewall packet-filter 4 inbound The E0 port of the router connects local LAN, and S0 port connects INTERNET. Which of the following statements is true A. The internal hosts can not access the hosts of 202.38.0.0/16 B. The internal hosts can access the external hosts with any address C. The hosts connected at other interfaces of the router can access the internal resources freely D. All the external packets can get through S0 port, incoming/outgoing the local LAN freely Answer: C

QUESTION 310: The router firewall of one organization is configured as below: firewall enable ¡¡¡¡acl 101 rule permit ip source 202.38.0.0 0.0.0.255 destination 10.10.10.10 0.0.0.255 ¡¡¡¡rule deny tcp source 202.38.0.0 0.0.0.255 destination 10.10.10.10 0.0.0.255 destination-port greater-than 1024 ¡¡¡¡rule deny ip source any destination any The configuration of the interface is as below: interface Serial 0 ¡¡¡¡Ip address 202.38.111.25 255.255.255.0 ¡¡¡¡link-protocol ppp ¡¡¡¡firewall packet-filter 101 inbound

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interface Ethernet0 ¡¡¡¡ip address 10.10.10.1 255.255.255.0 All the hosts of the internal LAN are in the 10.10.10.0 255.255.255.0 network segment. Which of the following statements are true ( Suppose acl is NOT used for any other networks ):( ) A. The external host 202.38.0.50 can ping through any internal hosts B. The internal host 10.10.10.5 can access network resources freely C. Any internal host can set up tcp connection with any external host D. The external host 202.38.0.0/24 can not set up tcp connection which port number greater than 1024 with the internal network host Answer: AD

QUESTION 311: For the access list configuration as below: [Quidway] acl 1 [Quidway-acl-1] rule permit source 153.19.0.128 0.0.0.127 Which of the following statements is true:( ) A. The packets with the source address less than 153.19.0.128 are permitted to pass B. The packets with the destination address less than 153.19.0.128 are permitted to pass C. The packets with the source address more than 153.19.0.128 and less than 153.19.0.255 are permitted to pass D. The packets with the destination address more than 153.19.0.128 are permitted to pass E. The configuration command is illegal Answer: C

QUESTION 312: As the configurations listed below, which permits the packets from network segment 172.16.0.0 to enter the serial interface 0 of Quidway router? A. [Quidway] acl 10 [Quidway-acl-10] rule permit source 172.16.0.0 0.0.255.255 [Quidway-acl-10] interface serial 0 [Quidway-serial0] firewall packet-filter 10 outbound B. [Quidway] acl 10 [Quidway-acl-10] rule permit source 172.16.0.0 255.255.0.0 [Quidway-acl-10] interface serial 0 [Quidway-serial0] firewall packet-filter 10 outbound C. [Quidway] acl 10 permit [Quidway-acl-10] rule permit source 172.16.0.0 0.0.255.255

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[Quidway-acl-10] interface serial 0 [Quidway-serial0] firewall packet-filter 10 inbound D. [Quidway] acl 10 permit [Quidway-acl-10] rule permit source 172.16.0.0 255.255.0.0 [Quidway-acl-10] interface serial 0 [Quidway-serial0] firewall packet-filter 10 inbound Answer: C

QUESTION 313: The numeric ID range of IP extended access list is: A. 0-99 B. 1-99 C. 100-199 D. 101-200 Answer: C

QUESTION 314: Which of the following statements concerning access list and access list configuration command are true? A. The access list has two types: IP standard list, IP extended list B. The standard access list determines whether to permit or deny packets according to the source addresses of the packets C. Normal/special field indicates whether the rule is effective during normal time range or special time range. By default, the normal time range is effective. D. The extended access list uses more information rather than source address to describe packet matching rule Answer: ABCD

QUESTION 315: Perform the following configurations on Quidway routers: acl 100 rule deny icmp source 10.1.0.0 0.0.255.255 destination any icmp-type host-redirect rule deny tcp source any destination 10.2.1.2. 0.0.0.0 destination-port equal 23 rule permit ip source any destination any And apply the rule to the interface. Which of the following statements are true: A. The host unreachable message of ICMP sent from 10.1.0.0 network segment is denied passing

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B. All the users are denied remote login to 10.2.1.2 host C. All the packets are permitted passing D. None of the above Answer: AB

QUESTION 316: Which of the following statements concerning the access list rule of Quidway series routers is NOT true? A. One access list may be composed of more than one rule B. One interface can only use one access list C. The judging collision rule is: the smaller the address range described, the more priority is considered by default D. If you have defined an access list but fail to apply it to the interface, then the Huawei router will permit the passage of all packets by default. Answer: B

QUESTION 317: Which of the following command can be used to view the status of the firewall on the router? A. display firewall B. display interface C. display acl D. display current-configuration Answer: A

QUESTION 318: Which of the following command is to apply the access list configured to the interface? A. firewall acl B. acl firewall C. ip firewall packet-filter D. firewall packet-filter Answer: D

QUESTION 319:

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Which fields can the extended access list use to define the packet filtering rule? A. Source IP address B. Destination IP address C. Port number D. Protocol type E. Log function Answer: ABCD

QUESTION 320: The log function of the extended access list allows particular host to record the firewall operations. A. True B. False Answer: A

QUESTION 321: Which of the following operation can validate the access control list: A. Apply the access control list to the interface B. Use extended access control list C. Use a combination of multiple access control lists D. Use acl and rule commands to configure the access control list Answer: A

QUESTION 322: Which of the following statements about access control list is true? A. acl 100 rule deny source 1.1.1.1 B. acl 1 rule permit source any C. acl 1 rule permit source 1.1.1.1 0.0.0.0 destination 2.2.2.2 0.0.0.255 D. acl 99 rule deny tcp source any destination 2.2.2.2 0.0.0.255 Answer: B

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QUESTION 323: Access control list is applicable to: A. Only IP network B. Only IPX network C. All networks, such as IP and IPX D. None of the above Answer: C

QUESTION 324: ACL is able to perform which of the following options? A. Permit the host in 125.36.0.0/16 network segment to use FTP protocol to access host 129.1.1.1 B. Deny any host to use Telnet for login C. Refuse the passage of any packets D. Only allow a certain user to login from outside instead of other users Answer: ABC

QUESTION 325: Access control list may filter the packet flow coming into and out of the router interface. Is this statement true or false? A. True B. False Answer: A

QUESTION 326: Which of the following access control lists indicates that deny the creation of connection from the host in 129.9.0.0 network segment to WWW port of the host within 202.38.16.0 network segment? A. acl 101 rule deny tcp source 129.9.0.0 0.0.255.255 destination 202.38.16.0 0.0.0.255 destination-port equal www B. acl 100 rule deny tcp source 129.9.0.0 0.0.255.255 destination 202.38.16.0 0.0.0.255 destination-prot equal 80 C. acl 100

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rule deny ucp source 129.9.0.0 0.0.255.255 destination 202.38.16.0 0.0.0.255 destination-port equal www D. acl 99 rule deny ucp source 129.9.0.0 0.0.255.255 destination 202.38.16.0 0.0.0.255 destination-port equal 80 Answer: AB

QUESTION 327: The advantages of using access control list include: A. Ensure the access by valid users, and refuse some unwished accesses B. Through the configuration of access control list, restrict the network flow by filtering certain packet C. Make sure all the users of enterprise private network can access Internet D. The administrator can differentiate the services in light of time Answer: ABD

QUESTION 328: The access control list is able to meet the following requirements, including: A. Allow the host within the network segment 202.38.0.0/16 to use HTTP to access 129.10.10.1 B. Deny any user to log in through Telnet C. Enable a certain user to log in through Telnet from outside D. Allow each equipment of a company to send mails by SMTP E. Choose to send some mails instead of other files Answer: ABD

QUESTION 329: IP standard access control list permits and denies packets on the basis of A. TCP port number B. UDP port number C. ICMP packet D. Source IP address Answer: D

QUESTION 330:

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The relation between wildcard mask and subnet mask is: A. No difference between the two B. The wildcard mask and subnet mask are just reverse C. One is decimal and the other is hexadecimal D. Both are created automatically Answer: B

QUESTION 331: Which of the following wildcard masks matches all the hosts of the subnet within 172.16.64.0/19? A. 255.255.255.0 B. 255.255.224.0 C. 0.0.0.255 D. 0.0.31.255 Answer: D

QUESTION 332: In configuring the rules for access control list, the keyword "any" means wildcard mask is: A. 0.0.0.0 B. The reverse codes of all subnet masks in use C. 255.255.255.255 D. No such command keyword Answer: C

QUESTION 333: The default protocol type of IP extended access list is: A. IP B. TCP C. ICMP D. Because of no default protocol type, the administrator must configure the specific protocol Answer: D

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QUESTION 334: The default application direction "ip access-group" command at the interface is: A. In B. Out C. Subject to the access control list that the interface applies D. No default value Answer: B

QUESTION 335: IP standard access control list should be placed in the best position: A. The nearer to the source of sending packet, the better B. The nearer to the destination of receiving packets, the better C. Whatever position is OK D. Any position in the direction leading up to the interface Answer: A

QUESTION 336: To validate the access control list, the requisite steps are: A. Enable firewall filtering function B. Define access control list C. Apply access control list at the interface D. Set special time segments E. Designate the log host Answer: ABC

QUESTION 337: Which of the following command may filter the RIP broadcast packet of one network segment? A. acl 101 rule deny tcp source any 255.255.255.255 B. acl 101 rule deny udp source any destination any destination-port equal 520 C. acl 101 rule deny udp source any destination any destination-port equal 53 D. acl 10

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rule deny udp source any 255.255.255.255 Answer: B


As shown in the networking figure, Assume the default gateway configuration of each host is correct. The specific configuration is as follows: Now create configuration... Current configuration ! version 1.74 firewall enable sysname Certkiller A encrypt-card fast-switch ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.0.0.1 255.255.255.0 ! interface Serial0 clock DTECLK1 link-protocol ppp ip address 10.0.1.1 255.255.255.0 ! interface Serial1 link-protocol ppp ! quit ip route-static 10.0.2.0 255.255.255.0 10.0.1.2 preference 60 ! return

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Now create configuration... Current configuration ! version 1.74 firewall enable sysname ! acl 101 match-orderauto rule normal deny ip source 10.0.2.1 0.0.0.0 destination 10.0.0.1 0.0.0.0 ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ip address 10.0.2.1 255.255.255.0 ! interface Serial0 link-protocol ppp ip address 10.0.1.2 255.255.255.0 firewall packet-filter 101 outbound ! interface Serial1 link-protocol ppp ! quit ip route-static 10.0.0.0 255.255.255.0 10.0.1.1 preference 60 ! return Is the conclusion that PC Certkiller 1 can ping PC Certkiller 2 successfully true? A. True B. False Answer: A

QUESTION 339: When the router receives ARP request, and the router can not resolve it, it will forward the ARP request . A. True B. False Answer: B

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QUESTION 340: The network layer protocol includes ( ) protocol(s) A. IP B. ARP C. ICMP D. RARP Answer: ABCD

QUESTION 341: Concerning TTL field of the IP packet header, which of the following statements are true( ) A. The most possible value of TTL is 65535 B. Under normal condition, the router should not receive IP packet with TTL=0 from the interface C. TTL is mainly for the purpose of avoiding recycled forwarding of IP packet in the network, saving network bandwidth D. Every time IP packet passes one device, including Hub, Lan Switch and router, the TTL value should be reduced by 1 Answer: BC

QUESTION 342: The function of RARP is( ) A. To convert its own IP address into MAC address B. To convert the IP address of the opposite party into MAC address C. To convert the MAC address of the opposite party into IP address D. To know its own MAC address and acquire its own IP address through RARP protocol Answer: D

QUESTION 343: Which of the following can perform network layer routing and addressing function? A. Routed protocol B. Routing protocol C. Spanning tree protocol

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D. Frame relay protocol Answer: B

QUESTION 344: Which of the following applications are based on TCP protocol: A. PING B. TFTP C. TELNET D. FTP E. OSPF F. SNMP G. WWW Answer: CDG

QUESTION 345: Which of the following protocols are network layer protocol(s) in TCP/IP protocol stack? A. IP B. ICMP C. NLSP D. UDP E. ARP F. RARP G. IGRP Answer: ABEF

QUESTION 346: 192.168.1.127 denotes a ( ) address A. Host B. Network C. Broadcast D. None of the above Answer: D

QUESTION 347:

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TCP protocol sets up one end-to-end connection for communication. Which of the following statements is true? A. There is one physical circuit between the hosts B. There is one virtual connection between the hosts C. There is one direct tunnel set up between the hosts D. None of the above Answer: B

QUESTION 348: Which of the following address denotes all the routers and hosts in the subnet that participate in multicast? A. 224.0.0.1 B. 224.0.0.2 C. 224.0.0.3 D. 224.0.0.9 Answer: A

QUESTION 349: ( ) is a network layer protocol, which sent back error report and other messages to the source end. A. TCP B. UDP C. ICMP D. IGMP Answer: C

QUESTION 350: The characteristic of IP protocol is () A. Reliable, connectionless B. Unreliable, connectionless C. Reliable, connection-oriented D. Unreliable, connection-oriented Answer: B

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QUESTION 351: TCP and UDP protocol are similar in that they are( ) A. Transport layer protocol B. Connection-oriented protocol C. Connectionless protocol D. None of the above Answer: A

QUESTION 352: The application based on TCP protocol includes( ) A. PING B. TFTP C. OSPF D. TELNET Answer: D

QUESTION 353: The function of the network part in the IP address is( ) A. To specify the network that the host belongs to B. To specify the ID of the host on the network C. To specify the network that the equipment can communicate with D. To specify one node in the subnet Answer: A

QUESTION 354: UDP protocol uses ( ) to provide reliability A. Inter-network protocol B. Application layer protocol C. Network layer protocol D. Transfer control protocol Answer: B

QUESTION 355:

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Which layer of TCP/IP protocol processes data format conversion, coding, session control? A. Application layer B. Transmission layer C. Network layer D. Data link layer E. Physical layer Answer: A

QUESTION 356: IGMP protocol is implemented on which layer of TCP/IP protocol? A. Physical layer B. Link layer C. Network layer D. Transmission layer E. Application layer Answer: C

QUESTION 357: Which of the following are functions of ICMP protocol? A. Reporting TCP connection timeout information B. Redirecting UDP message C. Forwarding SNMP data D. Finding subnet mask E. Reporting route update error information Answer: AB

QUESTION 358: As the network layer equipment, the router has two main characteristics as below: A. Data forwarding between the direct connected ports of two routers B. Frame switching between the direct connected ports of two routers C. Routing D. Restricting broadcast E. Data filtering F. Discovering the logical topology structure of the network

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Answer: AC

QUESTION 359: The protocol number of TCP protocol is ( ), and the protocol number of UDP protocol is( ) A. 23, 53 B. 53, 23 C. 6, 17 D. 17, 6 Answer: C

QUESTION 360: Suppose that you have configured static domain resolution (DNS disabled) on Huawei Quidway router. Which command can be used to view the domain resolution table that you have configured? A. display ip arp B. display arp C. dispaly interface D. dispaly ip host E. display dns Answer: D

QUESTION 361: Tracert is a kind of route tracing tool used to monitor the connectivity of the network layer A. True B. False Answer: A

QUESTION 362: Among the following items, which field(s) are NOT part of the TCP header? A. Subnet mask B. Source port number C. Source IP address

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D. Sequence number E. Emergency pointer Answer: AC

QUESTION 363: IP is considered as an unreliable protocol, because it can NOT ensure that the packet will be transmitted to the destination correctly. A. True B. False Answer: A

QUESTION 364: ARP is an address resolution protocol that uses broadcast, and it also uses ARP cache, for the use of broadcast will waste a large amount of bandwidth A. True B. False Answer: A

QUESTION 365: UDP message does NOT include: A. Source port B. Length C. Destination port D. Check sum E. Emergency pointer Answer: E

QUESTION 366: Which of the following statements concerning connection oriented services and connectionless services are true? ( ) A. Connection oriented services set up virtual link, to avoid data loss and congestion B. For the connection-oriented services, the transmitting end will retransmits packets after some time, if it does NOT receive acknowledgement from the receiving end C. Compared to connectionless services, the connection-oriented services provide more

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reliability guarantee D. Connectionless services are suitable for delay sensitive and highly reliable applications Answer: ABC

QUESTION 367: ARP denotes( ) A. Address Resolution Phase B. ARP Resolution Protocol C. Address Resolution Protocol D. Address Recall Protocol Answer: C

QUESTION 368: To determine the number of the routers that the network layer packets pass, which of the following command should be used? A. ping B. arp -a C. stack test D. tracert E. telnet Answer: D

QUESTION 369: Generally, Severs identify applications through particular port numbers, which are managed by IANA in a centralized manner. The range of the port numbers that IANA manages is: A. 1~255 B. 1~1022 C. 1~1023 D. 1024~5000 E. Above 5000 Answer: C

QUESTION 370:

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HTTP protocol works at which layer of TCP/IP protocol stack? A. Physical layer B. Data link layer C. Network layer D. Transmission layer E. Application layer Answer: E

QUESTION 371: In orderto configure correspond relationship between domain name and IP address 201.3.4.110 on Quidway router, which of the following configuration command is correct? A. [Quidway-serial0] ip host 201.3.4.110 www.huawei.com B. [Quidway] ip dns www.huawei.com 201.3.4.110 C. [Quidway] ip host 201.3.4.110 www.huawei.com D. [Quidway] ip host www.huawei.com 201.3.4.110 Answer: D

QUESTION 372: One company succeeds in applying for one Class C IP address, which needs to be assigned to 8 subsidiary companies. The largest company has 14 computers, and each subnet is in one network segment. Then the subnet mask should be set to: A. 255.255.255.0 B. 255.255.255.128 C. 255.255.255.240 D. 255.255.255.224 Answer: C

QUESTION 373: The port number of SNMP protocol is: A. 53 B. 69 C. 161 D. 23 Answer: C

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QUESTION 374: UDP protocol and TCP protocol have the following in common: A. Flow control B. Retransmission mechanism C. Check sum D. Provision of destination and source port number Answer: CD

QUESTION 375: Which type of ICMP code does PING command use? A. Redirect B. Echo reply C. Source quench D. Destination Unreachable Answer: B

QUESTION 376: Which of the following services adopts slide window technology A. Transmission of reliable data B. Connection-oriented virtual circuit C. Highly efficient full duplex transmission D. Flow control Answer: D

QUESTION 377: Which of the following is NOT a field in TCP packet format A. Subnet mask B. Sequence number C. Data D. Destination port Answer: A

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QUESTION 378: In TCP/IP protocol stack, which of the following can specify one and only TCP connection: A. Source IP address and source port number B. Source IP address and destination port number C. Destination address and source port number D. Source address, destination address, source port number and destination port number Answer: D

QUESTION 379: The main functions of the network layer in TCP/IP protocol stack are: A. Provide control over the physical layer, and effectuate such measures as error detection, error correction and synchronization of data stream B. Check network topology, decide the best route for packet transmission and achieve data forwarding C. Provide end-to-end communication for application between two hosts D. Provide such features as packet routing and prevention from congestion Answer: BD

QUESTION 380: ( ) protocol provides file transmission service A. FTP B. TELNET C. WWW D. TFTP Answer: AD

QUESTION 381: The following protocols at the application layer are used as mail service: A. TFTP B. SMTP C. SNMP D. HTTP E. POP3

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Answer: BE

QUESTION 382: Which of the following correctly describes the transport layer protocol: A. The transport layer lies between the application layer and the network layer, and serves to provide end-to-end connection for the terminal host B. The transport layer protocol includes TCP protocol and UDP protocol C. TCP protocol provides reliable connection-oriented communication service, while UDP protocol provides unreliable connectionless service D. TCP protocol provides unreliable connection-oriented communication service, while UDP protocol provides reliable connection-oriented communication service Answer: ABC

QUESTION 383: UDP packet contains the following fields including: A. Source port/destination port B. Source address/destination address C. Length and check sum D. Sequence number of long packet Answer: AC

QUESTION 384: In orderto distinguish various application programs, the transport layer uses ( ) for identification A. IP address B. Port number C. Service access point (SAP) D. Protocol number Answer: B

QUESTION 385: Which of the following describes TCP slide window mechanism in a correct way? A. There is a window at both ends of TCP connection, which works to control the receiving and sending

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B. A window at the transmit end of TCP connection is enough to effectuate the mechanism for flow control in a proper way C. A window at the receive end of TCP connection is enough to effectuate the mechanism for flow control in a proper way D. The size of the windows at both ends of TCP connection can be adjusted flexibly; they are not necessarily of the same size Answer: AD

QUESTION 386: Which of the following statements about IP packet structure is true? A. IP packet header contains such information as minimum time delay, maximum throughput and highest reliability B. Identification field in IP packet header serves as the only identity of each data packet C. Check sum field mainly calculates the checksum of the total IP packet D. Normally, IP packet header is of 20 bytes (inclusive of IP option field) Answer: ABD

QUESTION 387: If Host A needs to know MAC address of Host B, ARP should work in the following processes: A. Host A broadcasts ARP request packet in the network B. Upon receipting of request packet, Host B transmits the mapping from its own IP address to MAC address to Host A C. On receiving the request packet, Host B stores IP address of Host A and MAC address mapping to its own cache D. Host A stores the mapping from IP address of Host B to MAC address in its cache Answer: ABCD

QUESTION 388: RARP protocol is mainly used for the following purposes: A. PC terminal obtains IP address B. X terminal and diskless workstation obtains IP address C. X terminal and diskless workstation obtains MAC address D. Obtain IP address through MAC address E. Obtain MAC address through IP address Answer: BD

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QUESTION 389: In an IP address, the address with both network and host as 0, refers to: A. Network address B. Broadcast address of a specified network segment C. All the network D. The broadcast addresses of all the nodes in this network segment Answer: C

QUESTION 390: Some online users complain that they can not send Email, but can receive new Email. Which of the following options should administrator check? A. Whether this Email server is currently connected to network? B. Whether access list on Quidway router interface between client and email server deny SMTP data flow? C. Whether access list on Quidway router interface between client and Email server deny any data flow? D. Whether access list on Quidway router interface between client and Email server deny POP data flow? Answer: B

QUESTION 391: Which of the following options are basic means to view physical layer failure? A. To view connection indicator status of corresponding interface B. To manually check type of cable, plug and connector, and their current status (whether they are damaged, whether they are inconsistent with standard, and their compatibility, etc.) C. To use "display interface" command to confirm it as "interface is up, line protocol is up" D. To see whether setting of Interface IP address and subnet mask is correct Answer: ABC

QUESTION 392: Which layer of TCP/IP protocol stack is responsible for setting up, maintaining and terminating virtual connections, multiplexing higher-layer applications?

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A. Application layer B. Transmission layer C. Network layer D. Data link layer E. Physical layer Answer: B

QUESTION 393: Which of the following statements concerning NAT are true. A. NAT is the abbreviation for "Network Address Translation" B. NAT, also referred to as address translation, is used to implement translation between the private address and the public address C. When the host of the internal network accesses the external network, NAT is not needed D. The raising of NAT offers one effective solution to the problem of deficient IP address Answer: ABD

QUESTION 394: The function of NAT (Network address translation) is: A. Change IP into other network protocols B. Perform communication between ISPs (Internet service provider) C. Achieve the access function of dial-up users D. Achieve the translation between private IP address and public IP address Answer: D

QUESTION 395: Which of the following statements about address translation is true? A. Address translation solves the problems with the shortage of Internet addresses in an effective way B. Address translation serves to assign transparent address outside the network C. Address translation will have no impacts on the encryption and fast forwarding of IP packets D. Address translation provides the internal host with certain "privacy" protection E. Address translation simplifies the network debugging Answer: ABD

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QUESTION 396: Normally, the EASY IP character refers to: A. Configure the association between access control list and address pool B. Configure the association between access control list and interface C. Configure the association between access control list and internal server D. Configure the association between access control list and group list Answer: B

QUESTION 397: Which of the following description about address pool is true? A. Only one address pool can be defined B. Addresses in address pool must be consecutive C. When an address pool has been associated with a access control list, deletion of this address pool is not permitted D. Address pool can be associated with not only access control list, but also specific interface Answer: BC

QUESTION 398: Which of the following statements concerning the private IP address that IANA reserves is NOT true? A. The reserved private IP address block is: 10.0.0.0~10.255.255.255, 172.16.0.0~172.31.255.255, 192.168.0.0~192.168.255.255 B. To implement communication with Internet, these private addresses need to be converted into public addresses. The technique to do this include NAT, agent service, VPN message encapsulation technique, etc. C. The reserved private IP address block is: 10.0.0.0~10.255.255.255, 172.128.0.0~172.128.255.255, 192.128.0.0~192.128.255.255 D. The use of private address can save cost and keep the expandability of network Answer: C

QUESTION 399: DCC (DialControlCenter) is mainly used in two kinds of public networks, namely, ( ) and ( ) networks A. FR

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B. X.25 C. ISDN D. PSTN Answer: CD

QUESTION 400: If the opposite end IP address is 1.1.1.2, and the telephone number is 886401, Dialer map should be configured as( ) A. Dialer route 1.1.1.2 886401 B. Dialer route 886401 1.1.1.2 C. Dialer route ip 1.1.1.2 886401 D. Dialer route ip 1.1.1.2 string 886401 Answer: C

QUESTION 401: The command, "dialer timer idle ", is to set( ) A. Link idle time B. Link disconnection time C. Idle time of the busy port D. Wait time before the port data can be sent Answer: A

QUESTION 402: When one subscriber dials at the Bri port, he finds that he can dial, though Dialer enable-circular is not configured. This is because( ) A. For Bri port, command "Dialer enable-circular" is not needed B. It is impossible for this to happen. The subscriber must misremember it. C. Command "Dialer enable-circular" is needed only when receiving the call D. For Bri port, DCC is enabled by default Answer: D

QUESTION 403: Dialer port is a logical port. One Dialer port can contain multiple physical ports. The relationship between Dialer port and physical port is( )

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A. No relationship B. The physical port inherits the characteristics of the Dialer port C. Any configuration performed to Dialer port will be passed on to the physical port D. Any configuration performed to the physical port will be passed on to the Dialer port Answer: BC

QUESTION 404: Which of the following commands can be used to display the information of DCC port (configured at serial interface 1)? A. display ip interface B. display current-configuration C. display interface s1 D. display dialer interface serial 1 Answer: D

QUESTION 405: Which of the following command can be used to set the wait time before the re-setup of connection, after DCC link is set to be at disconnecting status? A. dialer timer idle B. dialer timer compete C. dialer timer enable D. dialer timer wait-carrie Answer: C

QUESTION 406: Adopting DCC, only when there are packets to be transmitted between them, the routers set up connection by dial-up. Therefore, DCC technique is applicable to burst transmission of packets with little information. A. True B. False Answer: A

QUESTION 407: In Resource-shared DCC configuration mode, if the local end needs to receive calls, it is requested that the following configurations performed at the physical interface

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at the local end, so as to make sure which dial-up interface this incoming calls go to A. Encapsulate PPP B. Encapsulate HDLC C. Configure PPP authentication D. Configure EXEC authentication Answer: AC

QUESTION 408: Which of the following is the correct command to configure the serial interface s0 of Quidway router to enable DCC? A. [Quidway] dialer enable s0 B. [Quidway-serial0] dialer enable C. [Quidway-serial0] dialer enable-circular D. [Quidway-serial0] dialer on-demand Answer: C

QUESTION 409: As a network engineer, you find that the ISDN network configured with DCC often disconnects. How will you troubleshoot the problem? A. Check if the LMI type used is correct B. Check the value set by Dialer timer idle command C. Make sure that DLCI value is assigned to BRI interface D. Check the configuration of dialer timer enable command Answer: B

QUESTION 410: Which of the following is narrowband public network A. Public Switched Telephone Network (PSTN) B. Integrated Services Digital Network (ISDN) C. X.25 D. Frame relay (FR) Answer: ABCD

QUESTION 411:

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In ISDN, the rate of B channel is( ) A. 8kbps B. 9.6kbps C. 64kbps D. 128kbps Answer: C

QUESTION 412: ISDN BRI is ( ) channel A. 2B+D B. 30B+D C. Coaxial cable D. Ordinary telephone line Answer: A

QUESTION 413: The physical line of ISDN BRI is( ) A. 2B+D B. 30B+D C. Coaxial cable D. Ordinary telephone line Answer: D

QUESTION 414: In the ISDN PRI interface, the common function of D channel is to( ) A. Transmit/receive fax B. Transfer voice C. Transfer signaling D. Serve as subscriber data channel Answer: C

QUESTION 415: In ISDN, U interface refers to( )

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A. The interface from NT1 to the terminal B. The interface from the telephone line to NT1 C. The interface from the switch to the subscriber line board Answer: B

QUESTION 416: The rate of Basic Rate Interface (BRI) of ISDN is( ) A. 16kbps B. 64kbps C. 144kbps D. 2048kbps Answer: C

QUESTION 417: To view the information of ISDN D channel, you should input: A. display isdn active-channel B. display isdn qsig-timer C. display isdn q931-timer D. display isdn call-info Answer: D

QUESTION 418: How many B channel (European standard) can ISDN PRI interface provide? A. 2 B. 23 C. 30 D. 32 Answer: C

QUESTION 419: The ISDN reference point between NT1 equipment and ISDN user line is: A. R B. S C. T

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D. U Answer: D

QUESTION 420: On Quidway routers, ISDN technique uses which of the following security measures? A. Call link identification B. PAP C. CHAP D. RADIUS Answer: ABCD

QUESTION 421: Q.921 and Q.931 are all ISDN service specifications formulated by ITU-T. Is this statement true or false? A. True B. False Answer: A

QUESTION 422: ISDN serves to solve the problem with digital transmission on local loop, so that it can transmit voice, data and video on the existing copper wires and thus achieves end-to-end digitalization. Is this statement true or false? A. True B. False Answer: A

QUESTION 423: ISDN provides the subscribers with two types of interfaces, BRI (2B+D) and PRI (30B+D), where B channel is the user channel at a permanent rate of 64Kbps; D channel is the control channel at a permanent rate of 16Kbps. Is this statement true or false? A. True B. False

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Answer: B

QUESTION 424: When IP protocol runs at ISDN interface (BRI or PRI) of Huawei router, its configuration command Dialer route is to set its correspondence with ISDN number and IP address at the opposite end. Is this statement true or false? A. True B. False Answer: A

QUESTION 425: When cE1/PRI of Huawei router does not work in E1 mode, physically it can be divided into 32 time slots, whose corresponding numbers range from 0 to 31. When used as PRI interface, No.15 time slot is used as D channel to transmit signaling A. True B. False Answer: B

QUESTION 426: Which command of Quidway router is used for locating ISDN layer 2 operation A. debugging isdn cc B. debugging isdn q921 C. debugging isdn q931 D. debugging isdn qsig Answer: B

QUESTION 427: The purpose of standby center is for( ) A. Enhancing the bandwidth of the network B. Enhancing the availability of the network C. Reducing the transport cost of the network D. Preventing the abnormal interrupt of data transmission Answer: BD

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QUESTION 428: Which of the following statements concerning standby center are true( ) A. When using the standby center, the delay time for changeover from standby interface to the active interface is configurable B. When using the standby center, the delay time for changeover from the active interface to the standby interface is configurable C. When using the standby center, once fault occurs to the line on the active interface, it will changeover to the standby interface D. When using the standby center, it will not changeover to the active interface immediately when the line on the active interface returns to the normal state, but, instead, it will after a while Answer: ABD

QUESTION 429: One virtual circuit in X.25 can( ) A. Act as the standby interface for one physical interface B. Act as the standby interface for one logical dialer port C. Act as the standby interface for one virtual circuit in the Frame Relay interface D. Act as the active interface, for which other interface will act as the standby interface Answer: ACD

QUESTION 430: The two B channel in BRI interface can( ) A. Act as the standby interfaces for two physical interfaces respectively B. Act as the standby interface for two logic channels respectively C. Act as two standby interfaces for one physical interface D. One acts as the standby interface for the physical interface, while the other acts as the interface for the logic channel Answer: ABCD

QUESTION 431: To configure one physical interface to be the standby interface for another logic channel, it includes the following steps to be performed( ) A. Configuring the logic channel

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B. Designating the standby priority level of this physical interface C. Configuring the route from the active/standby interface to the destination network D. Designating this physical interface as the standby interface, in the configuration mode of logic channel Answer: ACD

QUESTION 432: On which of the following interfaces can logic channels be configured( ) A. X.25 B. Frame relay C. Dialer D. PPP Answer: ABC

QUESTION 433: The configuration to designate the standby priority level of synchronous /asynchronous serial interface 1 and 2 to be 10 and 20 respectively is( ) A. standby interface 1 10; standby interface 2 20 B. standby interface serial 1 10; stabdby interface serial 2 20 C. standby interface 1 priority 10; standby interface 2 priority 20 D. standby interface serial 1 priority 10; standby interface serial 2 priority 20 Answer: B

QUESTION 434: The command Standby state-down 5 means ( ) A. Type 5 standby down status B. Active/standby interface changeover can be performed for only 5 times C. When the active interface keeps on down state for 5 seconds, it will changeover to the standby interface D. When the active interface is logic channel, if after calling for five times, it still fails, it will be deemed that the active logic channel is at down state Answer: D

QUESTION 435: The configuration to set: it will changeover to the standby interface after 30 seconds

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when the active interface shifts from Up to Down, and it will changeover to the active interface after 60 seconds when the active interface shifts from Down to Up, the command is A. standby timer enable-delay 60;standby timer disable-delay 30 B. standby timer enable-delay 30;standby timer disable-delay 60 C. standby delay enable-delay 60 disable-delay 30 D. standby delay enable-delay 30 disable-delay 60 Answer: B

QUESTION 436: The configuration to set : if after calling for 8 times, the logic channels as the active interface still fails, it will changeover to the standby interface, and check once every 60 second if the active logic channel has recovered to Up, the command is ( ) A. standby state-down 8 state-up 60 B. standby state-down 60 state-up 8 C. standby state-down 8; standby state-up 60 D. standby state-down 60; standby state-up 8 Answer: C

QUESTION 437: Which of the statements concerning Huawei Quidway standby center is true: A. The standby center technique enhances the reliability usability of the network B. The standby center technique can standby any interface, including logical interface of the router C. The standby center technique can implement redundancy standby for multiple devices D. All the above Answer: A

QUESTION 438: If Huawei Quidway standby center technique is adopted, more than one standby interfaces can be specified for one active interface, but different priority levels should be assigned to the standby interfaces A. True B. False Answer: A

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QUESTION 439: There is a network: the serial interfaces s0, s1 of two Quidway routers are connected correspondingly. Serial interface 0 encapsulates x.25 protocol. The IP address of RouterA s0 is192.168.1.1, and x.121 address is:112233445566. And the IP address of RouterB s0 is192.168.1.2, and x.121 address is: 223344556677. The x.25 logical channel 8 of s0 acts as the active interface and s1 acts as the standby interface. Which of the following commands for configuring the logical channel of RouterA is correct? A. [RouterA-serial0] x25 map ip 192.168.1.2 x121-address 112233445566 logic-channel B. [RouterA-serial0] x25 map ip 192.168.1.2 x121-address 223344556677 logic-channel C. [RouterA-serial0] x25 map ip 192.168.1.1 112233445566 logic-channel 8 D. [RouterA-serial0] x25 map ip 192.168.1.1 223344556677 logic-channel 8 E. None of the above Answer: B

QUESTION 440: Which of the following commands is the correct one for setting the condition for judging the logical channel 8 as down at serial interface 0? A. [Quidway-logic-channel8] standby state-down 10 B. [Quidway-logic-channel8] standby timer disable-delay 10 C. [Quidway-logic-channel8] standby timer enable-delay 10 D. [Quidway-serial0] standby state-down 10 E. [Quidway-serial0] standby timer disable-delay 10 F. [Quidway-serial0] standby timer enable-delay 10 Answer: A

QUESTION 441: Which of the following command is used to specify the physical interface as standby interface? A. [Quidway]standby serial 0 B. [Quidway-serial1]standby serial 0 C. [Quidway]standby interface serial 0 D. [Quidway-serial1]standby interface serial 0 Answer: D

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QUESTION 442: While configuring the standby center, whether dynamic routing or static routing is adopted, ultimately, the active/ standby interface should have the route to the destination network A. True B. False Answer: A

QUESTION 443: Which of the following commands is correct, to specify the logical channel 8 as the standby for active interface s0? A. [Quidway] standby logic-channel 8 B. [Quidway] standby 8 C. [Quidway-serial0] standby logic-channel 8 D. [Quidway-serial0] standby 8 Answer: C

QUESTION 444: Functions of standby center are: A. When a router is down, another router can replace this router B. When an interface of a router is down, another router can replace interface C. When an interface of a router is down, another interface can replace this interface D. When router interface line is down, other interface line can replace this interface line Answer: CD

QUESTION 445: Which of the following interfaces can serve as standby interface? A. ISDN BRI B. ISDN PRI C. X.25 D. Dial-up interface E. Ethernet interface F. Ethernet sub-interface G. Virtual interface template

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Answer: ABCDEFG

QUESTION 446: Multiple standby interfaces can be provided for one active interface. When active interface goes wrong, multiple standby interfaces can simultaneously replace active interface to communicate A. True B. False Answer: B

QUESTION 447: Standby tasks must be configured on routers at both ends of active/standby line A. True B. False Answer: B

QUESTION 448: When configure standby center, static route reaching destination network must be configured on active and standby interfaces A. True B. False Answer: B

QUESTION 449: The command 'standby state-down times' is applied when: A. Active interface is physical interface B. Standby interface is physical interface C. Active interface is logic channel D. Standby interface is logic channel Answer: C

QUESTION 450:

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The command 'standby state-up seconds' is applied when: A. Active interface is physical interface B. Standby interface is physical interface C. Active interface is logic channel D. Standby interface is logic channel Answer: C

QUESTION 451: The command used for designating logic channel for standby of active interface is: A. standby logic-channel number [ priority ] B. standby interface type number [ priority ] C. logic-channel number D. x25 map ip x.x.x.x x121-address x logic-channel logical-channel-number Answer: A

QUESTION 452: The S0 of Router Certkiller A and the S0 of Router Certkiller B are directly connected, and the configuration of Router Certkiller A is as below: Now create configuration... Current configuration ! version 1.74 firewall enable ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ! interface Serial0 clock DTECLK1 link-protocol ppp standby interface Serial 1 ip address 1.1.1.2 255.0.0.0 shutdown ! interface Serial1 clock DTECLK1

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link-protocol ppp ip address 2.2.2.2 255.0.0.0 ! return The configuration of Router Certkiller B is as below: Now create configuration... Current configuration ! version 1.74 firewall enable ! interface Aux0 async mode flow phy-mru 0 link-protocol ppp ! interface Ethernet0 ! interface Serial0 link-protocol ppp standby interface Serial 1 ip address 1.1.1.1 255.0.0.0 ! interface Serial1 link-protocol ppp ip address 2.2.2.1 255.0.0.0 ! return When the link of Router Certkiller A is disconnected, can the two routers still keep in connection( ) A. Yes B. No Answer: A

QUESTION 453: Huawei VRP uses the standby center to provide standby functions. Which of the following statement is true? A. Any physical interface or sub-interface on the router can act as the master interface; a logical channel on any interface can also act as the master interface B. Any physical interface or sub-interface on the router can act as the standby interface; a logical channel on any interface can also act as the master interface C. The interface with multiple logical channels (such as ISDN BRI and ISDN PRI) is

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able to provide standbys to multiple master interfaces through Dialer route D. Ethernet interface cannot be a standby interface Answer: ABCD

QUESTION 454: The international specialized organization that is responsible for IP address assignment allocates several network segment as the private network segment, which can be assigned and used over private network free. Which of the following network segment belong(s) to private address: A. 10.0.0.0/8 B. 172.16.0.0/12 C. 192.168.0.0/16 D. 224.0.0.0/8 Answer: ABC

QUESTION 455: The adjacent subnet of network 172.168.16.0 MASK 255.255.252.0 is: A. 172.168.20.0 B. 172.168.24.0 C. 172.168.32.0 D. 172.168.48.0 Answer: A

QUESTION 456: The default netmask of IP address 219.25.23.56 has ( ) bits A. 8 B. 16 C. 24 D. 32 Answer: C

QUESTION 457: The subnet is divided at the ( ) part of IP address A. Network address

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B. Host address C. Subnet segment D. Default netmask Answer: B

QUESTION 458: One class B IP address can use ( ) bits at most to divide subnet A. 8 B. 14 C. 16 D. 22 Answer: B

QUESTION 459: The subnet mask of one class A address is 255.255.240.0. How many bits are used to divide subnet( ) A. 4 B. 5 C. 9 D. 12 Answer: D

QUESTION 460: The subnet mask for the network 150.25.0.0 is 255.255.224.0. ( ) is a valid host address. A. 150.25.0.0 B. 150.25.31.255 C. 150.25.2.24 D. 150.15.3.30 Answer: C

QUESTION 461: The maximum subnet bits of Class C address are ( ) bits. A. 6

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B. 8 C. 12 D. 14 Answer: A

QUESTION 462: In the network with the subnet mask 255.255.240.0, ( ) is valid network address? A. 150.150.0.0 B. 150.150.0.8 C. 150.150.8.0 D. 150.150.16.0 Answer: D

QUESTION 463: In one class B network, 5-bit mask together with the default mask are used to divide subnet. Then each subnet can support ( ) hosts at most. A. 510 B. 512 C. 1022 D. 2046 Answer: D

QUESTION 464: To develop one class C network, the network needs to be divided into 9 subnets, with 15 hosts at most for each subnet. Which of the following is the proper subnet mask( ) A. 255.255.224.0 B. 255.255.255.224 C. 255.255.255.240 D. No proper subnet mask Answer: D

QUESTION 465: Which is the subnet mask of the segment 175.25.0.0/24( )

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A. 255.255.0.0 B. 255.255.255.0 C. 255.255.24.0 D. Depending on the address class Answer: B

QUESTION 466: Certkiller .com succeeds in applying for one class C IP address, which, however, has to connect 6 branch offices, with the largest branch offices having 26 computers. Each branch offices is in one network segment. Then the subnet mask should be set as( ) A. 255.255.255.0 B. 255.255.255.128 C. 255.255.255.192 D. 255.255.255.224 Answer: D

QUESTION 467: The default mask of class B address is( ) A. 255.0.0.0 B. 255.255.0.0 C. 255.255.255.0 D. 255.225.255.255 Answer: B

QUESTION 468: One Class B address network has about ( ) hosts A. 254 B. 16K C. 63K D. 2M Answer: C

QUESTION 469: Route item 10.0.24.0/21 can probably aggregate which of the following subnet

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routes? A. 10.0.25.0/24 B. 10.0.0.23/16 C. 10.0.26.0/24 D. 10.0.0.22/16 Answer: AC

QUESTION 470: The network address of the IP address 125.3.54.56 without any subnet is( ) A. 125.0.0.0 B. 125.3.0.0 C. 125.3.54.0 D. 125.3.54.32 Answer: A

QUESTION 471: For the network with the network address 154.27.0.0, if no subnet is performed, it can contain ( ) hosts. A. 254 B. 1024 C. 65,534 D. 16,777,206 Answer: C

QUESTION 472: Which of the following is legal IP host address( ) A. 127.2.3.5 B. 1.255.255.2 C. 225.23.200.9 D. 192.240.150.255 Answer: B

QUESTION 473: The default subnet mask of class D address has ( ) bits

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A. 8 B. 16 C. 24 D. None Answer: D

QUESTION 474: The IP address, whose first octet begins with binary 1110, is ( ) address A. Class A B. Class B C. Class C D. Class D Answer: D

QUESTION 475: The IP address network segment reserved for loopback test is( ) A. 127.0.0.0 B. 130.0.0.0 C. 164.0.0.0 D. 200.0.0.0 Answer: A

QUESTION 476: In TCP/IP protocol, the range of the first byte of class A is( ) A. 0---126 B. 0---127 C. 1---126 D. 1---127 Answer: C

QUESTION 477: For a traditional Class C network without subnet division, how many hosts are allowed to be installed at most?

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A. 1024 B. 65025 C. 254 D. 16 E. 48 Answer: C

QUESTION 478: There is an IP address 192.168.12.43, with the subnet mask to be 255.255.255.128, then the network address is_______, and the broadcast address is_______ A. 192.168.12.32 192.168.12.127 B. 192.168.0.0 255.255.255.255 C. 192.168.12.43 255.255.255.128 D. 192.169.12.128 255.255.255.128 E. 192.168.12.0 192.168.12.127 Answer: E

QUESTION 479: 172.16.10.32/24 denotes( ) A. Network address B. Host address C. Multicast address D. Broadcast address Answer: B

QUESTION 480: If one Class B IP network 172.16.0.0 is assigned to you, with the subnet mask to be 255.255.255.192, then you can use_______ networks, with at most______ hosts in each network segment. A. 512, 126 B. 1023, 62 C. 1024, 62 D. 256, 254 E. 192, 254 Answer: C

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QUESTION 481: The network address and broadcast address of 190.5.4.2/22 network segment are: A. 190.5.4.0, 190.5.7.255 B. 190.5.4.0, 255.255.255.255 C. 190.5.0.0, 190.5.4.255 D. 190.5.4.0, 190.5.4.255 Answer: A

QUESTION 482: For the network segments: 172.128.12.0, 172.128.17.0, 172.128.18.0, 172.128.19.0, which of the following network segments is most desirable to be used to implement route aggregation? A. 172.128.0.0/21 B. 172.128.17.0/21 C. 172.128.12.0/22 D. 172.128.20.0/20 Answer: A

QUESTION 483: Which of the following addresses is available host IP address? A. 192.168.2.15/28 B. 10.0.2.128/26 C. 127.4.2.5 D. 122.245.264.13/26 E. 12.3.4.6/24 F. 224.0.4.5 Answer: E

QUESTION 484: There is one IP address: 190.5.6.1, with the subnet mask to be 255.255.252.0. Then in which network segment is the IP address , and what is the subnet broadcast address? A. 190.5.4.0 190.5.7.255 B. 190.5.4.0 190.5.4.255 C. 190.5.4.0 190.5.4.254

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D. 190.5.1.0 190.5.1.255 Answer: A

QUESTION 485: How many hosts can network segment 192.168.2.16/28 accommodate? A. 16 B. 8 C. 15 D. 14 E. 7 Answer: D

QUESTION 486: Assuming a class "C" network with subnet mask is 255.255.255.224, please tell me the number of subnet bits, the number of subnets and hosts each subnet contains( ) A. 2, 2, 62 B. 3, 6, 30 C. 4, 14, 14 D. 5, 30, 6 Answer: B

QUESTION 487: By using CIDR technology ,which of the following options are correct on route aggregation?( ) A. 192.168.1.0-192.168.15.0 is aggregated to 192.168.0.0/255.255.224.0 B. 192.168.1.0-192.168.15.0 is aggregated to 192.168.0.0/255.255.240.0 C. 192.168.1.0-192.168.15.0 is aggregated to 192.168.0.0/255.255.248.0 D. 192.168.1.0-192.168.15.0 is aggregated to 192.168.0.0/255.255.252.0 Answer: AB

QUESTION 488: For network segments:172.168.16.0,172.168.17.0, 172.168.18.0, 172.168.19.0, which of the following network segments is the best to implement route aggregation? A. 172.168.16.0/21

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B. 172.168.17.0/21 C. 172.168.16.0/22 D. 172.168.20.0/20 Answer: C

QUESTION 489: Assuming to be given a class C network with subnet mask 255.255.255.224, please tell me the number of subnet bits and the number of hosts for each subnet at the most : A. 2,62 B. 3,30 C. 4,14 D. 5,30 Answer: B

QUESTION 490: Which of the following addresses is in the same network segment with 10.110.53.233: A. 10.110.48.10 mask 255.255.248.0 B. 10.110.43.10 mask 255.255.0.0 C. 10.110.43.10 mask 255.255.248.0 D. 10.110.48.10 mask 255.255.0.0 Answer: ABD

QUESTION 491: For one network with the subnet address 2.0.0.0 and the mask 255.255.224.0, one of its valid subnet address is( ) A. 2.1.16.0 B. 2.2.32.0 C. 2.3.48.0 D. 2.4.172.0 Answer: B

QUESTION 492: IP address 3.255.255.255 is ( )

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A. host address B. network address C. private address D. direct broadcast address Answer: D

QUESTION 493: The broadcast address of 10.1.0.1/17 is A. 10.1.128.255 B. 10.1.63.255 C. 10.1.127.255 D. 10.1.126.255 Answer: C

QUESTION 494: In Ethernet, twisted pair uses ( ) to connect other devices A. BNC connector B. AUI connector C. RJ-45 connector D. RJ-11 connector Answer: C

QUESTION 495: To connect two computers directly with twisted pair, the correct line orderis( ) A. Two computers can not be connected directly with twisted pair B. 1-2 2-1 3-6 4-4 5-5 6-3 7-7 8-8 C. 1-3 2-6 3-1 4-4 5-5 6-2 7-7 8-8 D. 1-1 2-2 3-4 4-3 5-5 6-7 7-6 8-8 Answer: C

QUESTION 496: Fast Ethernet is defined by ( ) standard A. IEEE802.4

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B. IEEE802.3u C. IEEE802.1q D. IEEE802.3i E. IEEE802.1d Answer: B

QUESTION 497: Cross cable should be used in the interconnection between which of the following devices( ) A. From the ordinary port of the switch to the Ethernet port of the router B. From the uplink port of the HUB to the ordinary port of the switch C. Between the ordinary ports of the switches D. Between the ordinary ports of the HUB Answer: BC

QUESTION 498: Concerning Gigabits Ethernet, which of the following is true( ) A. IEEE802.3ab defines Gigabits Ethernet B. Within one collision domain, Gigabits Ethernet does not allow interconnection by the repeaters C. IEEE 802.3z specially defines the transmission standard for Gigabits Ethernet over twisted pair D. Gigabits Ethernet supports network rate self-adaptation, and can automatically negotiate transmission rate with fast Ethernet Answer: B

QUESTION 499: 10M Ethernet uses ( ) standard cable A. 10BASE-2 B. 10BASE-5 C. 10 BASE-T D. 100BASE-T Answer: ABC

QUESTION 500:

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Various network devices need to be connected with specific cables. Which of the following connections is true? A. Host-----host, standard cable B. Host-----switch, cross cable C. Host-----router, standard cable D. Router-----router, standard cable E. Switch-----router, standard cable Answer: E

QUESTION 501: 10M Ethernet has three types of interface standard, where 10BASE-T adopts A. Twisted pair B. Thick coaxial cable C. Thin coaxial cable D. Optical fiber Answer: A

QUESTION 502: Connected to Ethernet interface of the router, cross network cable is used when A. The router is connected with the host B. The router is connected with HUB C. The router is connected with LAN-switch interface D. The router is connected with another router Answer: AD

QUESTION 503: The longest effective transmission distance of 10Base-T network cable is( ) A. 10m B. 100m C. 185m D. 200m Answer: B

QUESTION 504:

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The electrical characteristic of v.24 interface protocol complies with ( ) standard A. V.35 B. X.21 C. EIA/TIA RS232 D. EIA/TIA RS422 Answer: C

QUESTION 505: When V.24 interface works in synchronization mode, the highest transmission rate is( ) A. 64000bps B. 115200bps C. 2048000bps D. 4096000bps Answer: A

QUESTION 506: On the router, the interface(s) complied with V.24 protocol include (s)( ) A. AUX interface B. SERIAL interface C. CONSOL interface D. ETHERNET interface E. 8 asynchronous serial interface Answer: ABCE

QUESTION 507: In V.24 and V.35 cable, DSR denotes( ) A. Request transmission B. Data set ready C. Data carrier detection D. Data terminal ready Answer: B

QUESTION 508:

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Of the following network equipment categories, which belong(s) to DCE equipment by default: A. HUB B. Frame relay switch C. CSU/DSU D. Computer Answer: BC

QUESTION 509: When V.24 cable is working in asynchronous mode, which of the following link layer encapsulation protocols can be adopted? A. FR B. X.25 C. PPP D. HDLC Answer: C

QUESTION 510: Asynchronous serial port can be configured in: A. Leased line mode B. Dial-up mode C. Voice access mode D. PRI access mode Answer: AB

QUESTION 511: Which of the following is physical interface A. Dialer interface B. Voice interface C. Serial interface D. Sub-interface E. CE1/PRI interface F. Virtual interface module G. ISDN BRI interface H. Standby center logical channel

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Answer: BCEG

QUESTION 512: Synchronous/asynchronous serial port supports V24 and V35 protocols. When it work in V24 synchronization mode, the maximum rate is A. 64kbps B. 2048kbps C. 4096kbps D. 115.2Kbps Answer: A

QUESTION 513: Which of the following statements concerning Ethernet is false ? A. The Gigabits Ethernet has automatic adaptation function, and can adapt to the rate of 100M Ethernet automatically B. Fast Ethernet can provide full duplex communication, and the total bandwidth can reach up to 200M C. The Gigabits Ethernet can only provide full duplex communication, and the repeater is not allowed to be interconnected with Gigabits Ethernet. D. The Gigabits Ethernet adopts Class 5 twisted pair for interconnection, and the length of the cable should not exceed 100m Answer: A

QUESTION 514: Ethernet is the concrete implementation of IEEE( ) standard A. IEEE802.3 B. IEEE802.4 C. IEEE802.5 D. IEEE802.z Answer: A

QUESTION 515: One VLAN can be viewed as one( ) A. Collision domain

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B. Broadcast domain C. Management domain D. Congestion domain Answer: B

QUESTION 516: The devices can be used to divide the collision domain include( ) A. Bridge B. Switch C. Router D. HUB Answer: ABC

QUESTION 517: In the Ethernet ( ) can divide the network into multiple collision domains, but can NOT divide the network into multiple broadcast domains A. Bridge B. Layer 2 switch C. Router D. HUB Answer: AB

QUESTION 518: Which of the following device can be viewed as one kind of bridge device with multiple ports.( ) A. Repeater B. Switch C. Router D. HUB Answer: B

QUESTION 519: In the Ethernet switch, which of the following forwarding method with lower delay( )

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A. Full duplex B. Cut-through C. Store-and-forward D. Half-duplex Answer: B

QUESTION 520: Concerning shared Ethernet, which of the following are true( ) A. It needs collision detection B. It can only implement half-duplex flow control C. It uses CSMA/CD media access mechanism D. It can implement full duplex flow control Answer: ABC

QUESTION 521: In the Ethernet, different devices are distinguished according to ( ) A. IP address B. IPX address C. LLC address D. MAC address Answer: D

QUESTION 522: Which of the following is NOT true( ) A. The bridge can isolate network layer broadcast B. The repeater is a device that works at the physical layer C. The router is a device that works at the network layer D. The Ethernet switch works at the data link layer Answer: A

QUESTION 523: Which of the following statements concerning Ethernet switch are true( ) A. The Ethernet switch can be used to isolate collision domain B. The Ethernet switch is a device that works at the network layer

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C. The fundamental operating principle of Ethernet switch is 802.1D D. Spanning tree protocol resolves the requirements for the Ethernet switch to build virtual private network Answer: A

QUESTION 524: The MAC address of the network adaptor of your PC is assigned to the various manufactures by IETF, and is unique through the world A. True B. False Answer: B

QUESTION 525: In the broadcast packet sent by one windows mechanism when it starts, the destination MAC address is( ) A. 0000000000000 B. 1111111111111 C. FFFFFFFFFFFF Answer: C

QUESTION 526: The broadcast IP packet sent by one host with the IP address 10.110.9.113/21 is( ) A. 10.110.9.255 B. 10.110.15.255 C. 10.110.255.255 D. 10.255.255.255 Answer: B

QUESTION 527: In the Ethernet, before sending data, the workstation will first check if the network is busy or idle. Only when the network is not congested, will it send data. This is owing to the adoption of ( ) mechanism A. IP B. TCP

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C. ICMP D. CSMA/CD Answer: D

QUESTION 528: Which of the following are LAN protocols( ) A. PPP B. X.25 C. SLIP D. EthernetII E. Frame Relay F. EthernetSNAP G. Multilink PPP H. IEEE802.3 Answer: DFH

QUESTION 529: The shared Ethernet adopts ( ) protocol to support bus type architecture A. ICMP B. ARP C. SPX D. CSMA/CD Answer: D

QUESTION 530: Which of the following statements concerning the Ethernet switch are true( ) A. Store and Forward mode can not detect ultra-short frame (<64 bytes) B. When in Cut-through mode, the switch will not filter the Ethernet frames C. When in Cut-through mode, the Ethernet frame will not be stored in the switch in any form D. When in Store and Forward mode, the switch will filter the Ethernet frames one by one Answer: BD

QUESTION 531:

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Which of the following statements concerning the MAC address are true ( ) A. Some bytes of the MAC address is acquired from IEEE by various manufactures B. The MAC address has 6 bytes in total, which are written in the network card before shipment C. The MAC address is also referred to as physical address, or the hardware address of the computer D. The computer in LAN judges if the broadcast frame received is the one it should receive, by judging the MAC address of the said frame is same as the hardware address of the said computer Answer: ABC

QUESTION 532: In orderto implement full duplex function in the LAN environment built with Quidway series switches, which of the following conditions shall be met? A. Loopback and collision detection function B. Full duplex network adaptor C. Two pieces of Class 5 twisted pair D. The switches have been configured to be working at full duplex model Answer: BD

QUESTION 533: Please list the advantages of implementing virtual LAN A. The terminal equipment is easy to add and modify B. The network management workload is reduced C. The broadcast domain is separated D. Security is provided Answer: ABCD

QUESTION 534: Which of the following statements about full duplex Ethernet are true A. Full duplex technique can be implemented in the shared Ethernet B. It can receive and transmit Ethernet frames over one pair of twisted pair at the same time C. It can only be used for point-to-point connection D. It can be used for point-to-point and point-to-multipoint connection

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Answer: BC

QUESTION 535: In CSMA/CD network, all workstations can occupy bandwidth exclusively. A. True B. False Answer: B

QUESTION 536: Why the shared Ethernet has some hidden security trouble? A. Any host in a collision domain can see the data frame that others send, even though the destination MAC address is not of its own B. All the users are in one network segment C. Some of the users with higher priority can find other users in the network segment, and acquire sensitive data D. Collision problem tends to occur in the shared Ethernet, resulting in frame message loss Answer: A

QUESTION 537: Which of the following network devices has the function of connecting different subnets: A. Bridge B. Layer 2 switch C. HUB D. Router E. Repeater Answer: D

QUESTION 538: Which of the following devices has the function of packet forwarding? A. Router B. Bridge C. Hub

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D. Layer 2 switch Answer: A

QUESTION 539: Cut-through switching is faster than store-and-forward switching . A. True B. False Answer: A

QUESTION 540: When two hosts on the Ethernet transmit data at the same time, they collide. What will the hosts do? A. The two hosts that collide will stop transmitting, and retransmit at a random time later B. The two hosts that collide will transmit reorientation information, and each finds one idle path to transmit frame message C. The two hosts that collide will stop transmitting, and start timer at the same time and retransmit the data 15 seconds later D. The hosts transmit error information and continue to transmit the data Answer: A

QUESTION 541: The main physical medium used in Ethernet includes: A. Coaxial cable B. Twisted pair C. Optical cable D. V.24 cable Answer: ABC

QUESTION 542: The working modes of Ethernet switch port can be set as A. Full duplex B. Trunk mode C. Semi-duplex D. Automatic negotiation mode

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Answer: ACD

QUESTION 543: The data forwarding of Ethernet switch can be set in the following mode: A. Automatic negotiation mode B. Store-and-forward mode C. Circuitous mode D. Cut Through mode Answer: BD

QUESTION 544: The equipment able to partition the broadcasting domain includes: A. Bridge B. Repeater C. Ethernet switch with VLAN function D. Router Answer: CD

QUESTION 545: Quidway switch supports the implementation of Virtual LAN (VLAN) for further partition of broadcast domain. A. True B. False Answer: A

QUESTION 546: How does the switch know to forward the frame to which port( ) A. Using MAC table B. Using ARP table C. Reading the source ARP address D. Reading the source MAC address Answer: A

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QUESTION 547: Two Ethernet switches are connected with 2 twisted pair. In orderto resolve the communication problem, ( ) technique needs to be used. A. Source route bridge B. Spanning tree bridge C. MAC sub-layer bridge D. Remote source route bridge Answer: B

QUESTION 548: IEEE organized to formulate ( ) standard, standardizing the method of VLAN implementation between switches A. ISL B. VLT C. 802.1q Answer: C

QUESTION 549: Each port of the Ethernet switch can be viewed as one( ) A. Collision domain B. Broadcast domain C. Management domain D. Congestion domain Answer: A

QUESTION 550: Which of the following address denotes all the routers and hosts over the subnet that participates in multicast( ) A. 224.0.0.1 B. 224.0.0.5 C. 224.0.0.6 D. 224.0.0.9 Answer: A

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QUESTION 551: Which of the following statements concerning the function of Link-Aggregation are true( ) A. When Link-Aggregation function is used, it is for the purpose of isolating broadcast B. Link-Aggregation function can be used to conveniently implement load sharing of flow C. When Link-Aggregation function is used, it is likely to give rise to broadcast storm D. The use of Link-Aggregation function can expand the communication bandwidth between the switches or between the servers Answer: BD

QUESTION 552: Spanning Tree Algorithm ensures that there is no loop in the network topology, by blocking the port that causes loop. A. True B. False Answer: A

QUESTION 553: Which of the following statements concerning Ethernet switch are true: A. The Ethernet switch is a kind of device that works at the network layer B. The most fundamental operating principle of Ethernet switch is 802.1d C. Spanning tree protocol resolves the requirements for the Ethernet switch to build virtual private network D. The Ethernet switch can be used to divide collision domain Answer: BD

QUESTION 554: When one Ethernet switch receives a data frame from a port of the switch, if the destination MAC address is NOT found in the MAC address table, what will usually be done? A. Copying the Ethernet frame to all the ports B. Sending the Ethernet frame only to the specific port C. Sending the Ethernet frame to all the ports other than this port D. Discarding this frame

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E. Sending the Ethernet frame to one group of specific ports Answer: C

QUESTION 555: In a switched network that contains equipment of multiple manufactures, the tag of Trunk in VLAN should select A. IEEE 802.1q B. ISL C. VLT D. Any of the above Answer: A


In the network shown as above, how many collision domains are there? A. 1 B. 2 C. 3 D. 4 Answer: D

QUESTION 557: Which kind of device is needed for the communication between VLAN? A. Bridge B. Layer 2 switch C. Router D. HUB Answer: C

QUESTION 558: Which of the following are methods for dividing network into VLANs? A. Port-based

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B. Protocol-based C. Mac address-based D. Position-based Answer: ABC

QUESTION 559: The tag header of IEEE 802.1Q varies according to the medium used. According to IEEE802.1Q standard, the tag is embedded in( ) A. Not at fixed place B. Before the source MAC address and destination MAC address C. After the source MAC address and the destination MAC address D. Between the source MAC address and destination MAC address Answer: C

QUESTION 560: In STP protocol, when the priority levels of the bridges are same, which of the following will be selected as the root bridge( ) A. The bridge with the smallest MAC address B. The bridge with the biggest MAC address C. The bridge whose port priority value is highest D. The port whose port priority value is lowest Answer: A


In the network shown as above, how many broadcast domains are there?(Supposed VLAN not divided) A. 0 B. 1 C. 2 D. 3 Answer: B

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QUESTION 562: Spanning tree algorithm is used in Ethernet for the purpose of: A. Preventing the route update packet from one same port from forwarding to this port B. Generating loop free logical tree structure, and trying it is best to set up one channel between the LAN network segments C. Setting up one path between each LAN network segment D. Ensuring that the data information will reach each node correctly Answer: B

QUESTION 563: IEEE 802.3X is VLAN standard A. True B. False Answer: B

QUESTION 564: IEEE 802.3u is the standard of fast Ethernet switch A. True B. False Answer: A

QUESTION 565: Why Lan need to be divided into Vlans? A. Reduce the cost on the moving and changing of network equipment B. Strengthen network security C. Restrict broadcast packet and save bandwidth D. Achieve dynamic management of the network Answer: ABCD

QUESTION 566: Logically, all the switches are made up of two parts( )and( ) A. Data forwarding logic

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B. Switching module C. MAC address table D. Input/output interface Answer: AD

Documents

· GB0-180 Actualtests.com - The Power of Knowing QUESTION 1: Which of the following is the function of the session layer( ) A. To provide encryption/decryption B. To provide data