DCompNtwk Final - CCNA Discovery: Designing and Supporting Computer

Networks (Version 4.0)

1

Refer to the exhibit. After issuing the router configuration commands shown, a network administrator finds that IPv6 routing is not working on the router. What could solve the problem?

Configure a unique IPv6 RIP process on each interface.

Issue the ipv6 unicast-routing global configuration command.

Issue the ipv6 router rip v6process global configuration command.

Change the prefix length on both IPv6 addresses from 64 to 128 bits.

2

Refer to the exhibit. While planning an upgrade, a network administrator uses the Cisco NetFlow utility to analyze data flow in the current network. What generated the most packets?

TCP-other

TCP-Telnet

ICMP

UDP-DNS

UDP-other

3 A network engineer is at a customer site. After resolving technical problems in the network, the engineer provides a training session for the support staff. Which job function best fits the activities of this network engineer?

network designer

account manager

pre-sales engineer

post-sales field engineer

4 What value is an alternative representation of the IPv6 address 2001:DB80:0000:0000:0C41:3EFF:FE00:0000?

2001:DB8::C41:3EFF:FE:

2001:DB80::C41:3EFF:FE00::

2001:DB80::C41:3EFF:FE00:0

2001:DB80:0:0:0:C41:3EFF:FE::

5 Which task would typically only require services that are located at the access layer of the hierarchical design model?

placing a VoIP call to a business associate in another country

connecting to the corporate web server to update sales figures

using a VPN from home to send data to the main office server farm

responding to an e-mail from a co-worker in another department

printing a meeting agenda on a local departmental network printer

6 What information does an administrator require before saving the running configuration from a router to a TFTP server?

router IP address and the name of the configuration file in NVRAM

TFTP server IP address and the size of the configuration file in RAM

TFTP server IP address and the name of the configuration file that will be saved

router IP address, size of the file and name of the configuration file on the TFTP server

TFTP server IP address, the router IP address, and the router interface through which the file will be loaded

7 Company XYZ needs a WAN connection between headquarters and branch offices that has a high level of security. The connection must provide high bandwidth to support VoIP and transactional data with as little overhead as possible. What is the best solution for WAN connectivity for company XYZ?

DSL

cable

cell relay

PPP over a leased line

8

Refer to the exhibit. The named ACL "Managers" already exists on the router. What will happen when the network administrator issues the commands that are shown in the exhibit?

The commands overwrite the existing Managers ACL.

The commands are added at the end of the existing Managers ACL.

The commands are added at the beginning of the existing Managers ACL.

The network administrator receives an error that states that the ACL already exists.

9

Refer to the exhibit. Which EIGRP configuration commands should a network administrator enter on router R1 to correctly advertise a single summary route to router MAIN for the campus LAN?

10 What should be considered in the design of a wireless LAN on a corporate campus?

the vendor of all employee wireless NICs

the cables that are used for LAN connectivity

the number of wireless NICs required on enterprise servers

the messaging features that are used on employee cell phones

the location of the concrete pillars and walls between the offices

11 Which two technologies can provide data integrity in a VPN connection? (Choose two.)

ESP

DES

MD5

DH1

SHA-1

12 A user in a large office calls technical support to complain that a PC has suddenly lost connectivity to the network. The technician asks the caller to talk to nearby users to see if

other machines are affected. The caller reports that several immediate neighbors in the same department have a similar problem and that they cannot ping each other. Those who are seated in other departments have connectivity. What should the technician check as the first step in troubleshooting the issue?

the power outlet to the PC that is used by the caller.

the trunks between switches in the wiring closet.

the status of the departmental workgroup switch in the wiring closet.

the cable that connects the PC of the caller to the network jack.

the cable connection between a PC and a network outlet that is used by a neighbor.

13 During the boot process and assuming the default sequence, what is the second location where the router will look for the IOS?

ROM

flash

NVRAM

TFTP server

14 Why is it difficult for network designers to predict the patterns and behavior of file transfer traffic?

The traffic is user initiated.

File size is typically very small.

Dedicated bandwidth is essential.

All file transfer traffic is queued as high priority.

15 A router has been removed from the network for maintenance. A new Cisco IOS software image has been successfully downloaded to a server and copied into the flash of the router. What should be done before placing the router back into the production network?

Back up the new image.

Copy the running configuration to NVRAM.

Restart the router and verify that the new image starts successfully.

Delete the previously used version of the Cisco IOS software from flash.

16

Refer to the exhibit. Which two commands allow verification of end-to-end Layer 3 connectivity from R3 to all devices? (Choose two.)

R3> ping

R3# traceroute

R3# show ip arp

R3# show ip route

R3# show cdp neighbors

17 Company XYZ requires a WAN solution that provides flexible bandwidth options and supports one physical interface at the head office that would provide simultaneous connectivity to various remote sites. The distance from each site should not make the solution more expensive. Which WAN technology meets the requirements of the company?

DSL

cable

Frame Relay

T1 leased line

18 What type of system connects to the PSTN and uses a PBX to route calls via analog or digital lines?

VPN

VoIP

IP telephony

traditional telephony

19 While configuring EIGRP on a router, the technician enters this command: Router(config-router)# variance 8 What is the effect of entering this command?

It adjusts the cost of all EIGRP routes to 8.

It enables unequal cost load balancing on the router.

It restricts the number of EIGRP feasible successor routes to 8.

It enables EIGRP equal cost load balancing over a maximum of 8 routes.

It modifies the number of values used in the composite metric calculation.

20

Refer to the exhibit. What can be determined about the connection between R3 and R4?

R4 is three hops away.

R4 is not a Cisco device.

R3 and R4 are directly connected.

R4 is reachable through switches Sw1 and Sw2.

21 Which statement describes the use of a network baseline?

It creates a high level logical network diagram.

It provides a point of reference for future network evaluations.

It allows precise identification of the original location of network equipment.

It should be established as soon as a problem is detected on the network.

22

Refer to the exhibit. The routers are configured with RIPv2 and utilize the default configuration. When attempting to communicate with other networks, hosts from 172.31.1.0/24 are experiencing connectivity issues. What could be done to resolve this issue?

Change to a public IP address scheme.

Ensure that automatic route summarization has been disabled on all routers in the network.

Change the IP address for the Router3 LAN to be 192.168.7.0/24.

Change the subnet mask on the link between Router2 and Router3 to 255.255.255.0.

23 A network administrator has configured Frame Relay on a serial interface and issued the

show interfaces serial command. The output shows that the interface is up and the line protocol is up. However, pings to the remote router across the link fail. What should the next step be to ensure that the IP address of the remote router appears in the Frame Relay map table of the local router?

Configure the router using the no inverse-arp command.

Ensure that the LMI type is correct for the circuit.

Configure the router using the frame-relay map ip command.

Verify that the remote router has Frame Relay encapsulation enabled.

24

Refer to the exhibit. What can be concluded from the output that is shown?

MDF_2811 has a MAC address of 2294:300F:0000.

Device C3750-24_IDF2 is running Cisco IOS Software Release 12.3(23)SEE2.

A Cisco 3750 switch is connected to the FastEthernet1/0/1 port on MDF_2811.

MDF_2811 is installed in the main distribution facility on floor 28 of building 11.

25 A network designer has chosen to specify the use of a dedicated firewall appliance at the perimeter of a large network. Why would the designer use a dedicated firewall rather than using the Cisco IOS firewall feature set on the existing router?

Traffic filtering is needed on the internal LAN.

Multiple levels of access to the network are needed.

The DMZ requires packet filtering and port blocking.

Heavy network traffic will be handled best by using a dedicated device.

26 Which security procedure should be considered to protect a server farm against internal attacks?

Locate the server farm on a DMZ.

Virtualize server resources whenever possible.

Implement load balancing and failover between servers.

Implement a layer of firewall features and intrusion protection between the servers and the internal networks.

27 What is a signaling standard that is used for managing and maintaining the connection between a CPE router and the service provider Frame Relay switch?

ARP

CIR

DLCI

Inverse ARP

LMI

28 A network administrator is integrating IPv6 into an IPv4 network by encapsulating one protocol packet within another protocol. Which transition method is being used?

dual stack

tunneling

proxying and translation

NAT with Protocol Translator

29 A network administrator is asked to upgrade the enterprise network devices and to modify the addressing scheme to support VLSM and route summarization. The current network infrastructure contains both Cisco and non-Cisco routers. The plan is to replace old routers gradually with the latest Cisco routers. Which two routing protocols can the administrator use to support both upgrading requirements? (Choose two.)

BGP

OSPF

RIPv1

RIPv2

EIGRP

30

Refer to the exhibit. A network engineer applies the ACL that is shown in the exhibit to interface S0/0/0 on router R1 outbound. What impact will the ACL have on traffic that moves

through interface S0/0/0?

All traffic from the 172.16.0.0/16 network will be permitted.

All traffic from the 172.16.5.0/24 network will be permitted.

All traffic from the host with the IP address 172.16.5.5 will be permitted.

All traffic that is destined for the 172.16.5.0/24 network will be permitted.

All traffic that is destined for the host with the IP address 172.16.5.5 will be permitted.

31

Refer to the exhibit. EIGRP has been configured as a routing protocol in the network. Users who are connected on LAN_1 and LAN_2 can ping their default gateways. Users on LAN_1 complain that they are unable to access the resources on the file server that is connected to LAN_2. A technician issues the show ip interface brief command on R1 to verify the status of the interfaces. What information will help the technician troubleshoot the issue?

Interface S0/0/1 line protocol is down.

Interface Vlan1 is administratively down.

Interface Fa0/1 is missing an IP address.

Interface S0/0/0 is configured with an incorrect IP address.

32 In a converged network, which two types of traffic would be categorized as real-time traffic? (Choose two.)

e-mail

file transfer

web browsing

videoconferencing

voice over IP

video on demand

33

Refer to the exhibit. A customer has a problem with connectivity in the network. Based on the IP addressing scheme, what is causing the problem?

The WAN links need IP addresses from a different major network.

The WAN link that connects R1 to R2 overlaps with the R3 LAN.

The WAN links that connect R1 to R3 and R1 to R2 have incorrect masks.

The R1 LAN is incorrect because subnet zero cannot be used with VLSM.

34 What are the primary design goals for the core Layer?

to provide centralized server farm and VoIP services

to provide dynamic routing services, filtering, and traffic flow management

to provide 100% uptime, maximization of throughput, and facilitation of network growth

to provide static routing, wireless access points for the network, and security for the edge devices

35

Refer to the exhibit. A NetworkingCompany engineer is characterizing an existing network for a new customer. The engineer issues a show running-config command on the branch router to gather configuration information. What is the engineer able to determine as a result of viewing the output of this command?

The branch office router has two routes to the main office LANs in the routing table.

The default route for the branch office traffic is the serial link to the Edge2 router.

A connection through ISP-A will be used to reach the main office LANs if the Frame Relay network is unavailable.

By using both the DSL and the Frame Relay connection, the branch office router will load balance traffic that is destined for the main office LANs.

36 In order for the IT staff of a company to understand the basic operation of VPNs, which two features or technologies must the network designer identify as training needs? (Choose two.)

IPv6 tunneling

QoS operation

tunneling protocols

VLAN configuration

encryption algorithms

37

Refer to the exhibit. A networking company designer is reviewing a diagram of a customer network. What are the two problems that need to be resolved in the topology that is shown? (Choose two.)

The firewall router and ISP connection represent a single point of failure.

If one of the Layer 3 switches fails, the Cisco Call Manager will be unreachable.

A power supply failure of the server block switch will cause the entire IP telephony system to fail.

Using Layer 3 switches to interconnect the server block servers to the IP phones introduces too much delay.

The IP phones need to be redundantly connected to the switches to prevent single points of failure at the access layer.

38 A WIC-1T module needs to be installed in a Cisco 1841 router that currently has a WIC-2T module in slot 0. What should the network technician do first?

Install the hot-swappable option module.

Turn off the power to the router before installing the new module.

Remove the WIC-2T module so that the new module can be installed in slot 0.

Shut down all Fast Ethernet ports on the router until the new WIC module installation is complete.

Configure the Cisco IOS software to support an internal trunk link between the two WIC modules.

39 When implementing a security policy, which two actions should be included as part of the security checklist? (Choose two.)

Disable all logging.

Enable Telnet on TCP port 23.

Use HTTP for web administration.

Set timeouts and ACLs on VTY lines.

Shut down any unused ports and interfaces.

40

Refer to the exhibit. Access list 100 is applied inbound to interface serial 0/0/0 on the SOHO Router1. Which traffic will be denied by the configuration?

DNS traffic from host A to the Internet

FTP traffic from host A to the Internet

ICMP traffic from the ISP to server 1

traffic from the ISP to the server on port 23

41

Refer to the exhibit. Following a test plan, the network systems engineer completes the configuration of an access layer switch and connects three PCs. The engineer attempts to ping from each PC to the other connected PCs to test the configuration. Which statement describes the result of the last step?

Host 1 can ping Host 2.

Host 1 can ping Host 3.

Host 2 can ping Host 3.

No hosts can ping any other host.

42 Which technology will prioritize traffic based upon the technical requirements of IP telephony?

PoE

QoS

RPC

RTP

VPN

43

Refer to the exhibit. A network associate is configuring a new router to provide routing between VLANs. The associate removes the router from the box and connects the Fa0/0 interface to a trunking port on the switch. After the configuration is applied to the router, the traffic between VLANs still fails. What is causing this to occur?

The NWRnStick router needs a routing protocol configured.

The NWRnStick router needs additional Fast Ethernet interfaces installed.

The subinterfaces of the NWRnStick router should have IP addresses applied.

All the subinterfaces of the NWRnStick router should be configured in the same VLAN.

44 What can be broadcast over the wireless network to help a user connect to the network and use wireless services?

SSID

WEP keys

VLAN parameters

WPA encryption keys

VPN authentication information

45 A network engineer is prototyping a new IP addressing and summarization strategy for a new network that will be integrated into the existing infrastructure. Which method is appropriate for testing the addressing scheme?

using the production network of the customer

using actual network equipment in a lab

using the Cisco Network Assistant

using a network simulation tool

46 A company decides to deploy a virtual private network (VPN) to connect remote workers and

branch offices to corporate headquarters. What is the best description of the type of connectivity the company is ready to implement?

a VPN that uses LANs to connect remote sites or users

a VPN that uses a public network to connect remote sites or users

a VPN that uses a wireless LAN over the Internet to connect remote sites or users

a VPN that uses a dedicated connections, such as leased lines, to connect remote sites or users

47

Refer to the exhibit. What can the field engineer conclude about the EIGRP authentication between Router1 and Router2?

Authentication will fail because only one key is configured.

Authentication will succeed and EIGRP updates can be exchanged.

Authentication will fail because the key chain names do not match.

Authentication will fail because the key chain names must match the router names.

48

Refer to the exhibit. An administrator installs a WIC-2T module into a Cisco 1841 router. Attempts to configure the S0/0/0 interface are unsuccessful. As a first step in troubleshooting

the failure, the administrator issues the show version command. What is a possible reason for the failure?

The WIC was not physically installed properly.

The WIC was installed into slot 1 instead of slot 0.

The interface type and number are invalid on an 1841.

The configuration register is the wrong value for adding new modules.

49 What type of Frame Relay subinterface must be used to connect remote sites without having to disable split horizon?

multipoint

multiaccess

point-to-point

nonbroadcast multiaccess

50 Which statement is true about the pairing of services and transport layer protocols for FTP and VoIP?

FTP applications and VoIP use TCP at the transport layer.

FTP applications and VoIP use UDP at the transport layer.

FTP applications use TCP at the transport layer while VoIP uses UDP at the transport layer.

FTP applications use UDP at the transport layer while VoIP uses TCP at the transport layer.

Submit