CCNA 1_Practice Exam-2012

7/28/2019 CCNA 1_Practice Exam-2012

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The Layer 4 header contains which type of information to aid in the delivery of data?service port number

host logical address

device physical address

virtual connection identifier Which statement is true about the running configuration file in a Cisco IOS device?

It affects the operation of the device immediately when modified.

It is stored in NVRAM.

It should be deleted using the erase running-config command.

It is automatically saved when the router reboots.

Refer to the exhibit. Host A wants to access the Internet. Which combination of a Layer 2 address and a Layeaddress will enable this access from host A?

Destination MAC: 0030.8596.DE83 Default gateway: 209.165.202.130

Destination MAC: 0030.8596.DE82 Default gateway: 172.16.9.2

Destination MAC: 0030.8517.44C4 Default gateway: 172.16.1.1

Destination MAC: 0030.8517.44C4 Default gateway: 209.165.202.130

Refer to the exhibit. In a network, host A is sending data segments to host B. The flow control of the


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segments that are being exchanged is displayed. Which two statements are true about this communication?(Choose two.)

The initial window size is determined via the two-way handshake.

The window size for the TCP session that is represented is initially set to 3000 bytes.

Acknowledgment number 3001 indicates that host A will send the next segment with sequencenumber 3001.Host B expects that the next received segment number will be 3000.

No more acknowledgments will be exchanged.

Examine the graphic with current configurations. Host A in the Clerical office failed and was replaced. ping to 127.0.0.1 was successful, the replacement computer cannot access the company network. With pdisabled on the Fa0/0 interface of the New York router, what is the likely cause of the problem?

network card failure

network cables unplugged

IP address incorrectly enteredsubnet mask incorrectly entered

Refer to the exhibit. What is the correct destination socket number for a web page request from HstA to the web server?


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00-08-a3-b6-ce-46

198.133.219.25:80

http://www.cisco.com

C 198.133.219.0/24 is directly connected, FastEthernet0/0

Refer to the exhibit. The PC, the routing table of which is displayed, is configured correctly. To whichnetwork device or interface does the IP address 192.168.1.254 belong?

PC

switch

router interface fa0/0

router interface fa0/1

Refer to the exhibit. Host A uses router A as its default gateway. If host A sends an ICMP echo request to 172.ICMP response will host A receive.

echo reply


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source quench

route redirection

destination unreachable

Refer to the exhibit. A network administrator is troubleshooting a link that is down between Router1 and Routethe problem, which wire pairs need to be switched on one of the Ethernet cable ends?

pair 1 and pair 2

pair 1 and pair 3

pair 2 and pair 3

pair 2 and pair 4

Refer to the exhibit. On the basis of the IP configuration that is shown, what is the reason that Host A and Hostto communicate outside the local network?

Host A was assigneaddress.Host B was assigneaddress.Host A and Host Bdifferent networks.


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The gateway addresassigned a broadcas

Refer to the exhibit. All devices in the network use default configurations. How many logical address ranges ar this topology?

2

3

4

5

6Partea superioar a mWhen connectionlessare implemented at thlayers of the OSI mousually used to acknothe data was receivedrequest the retransmismissing data?

IP

UDPEtherneta connectionlessacknowledgemean upper-layer,oriented protoco


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Refer to the exhibit. A technician uses the nslookup command on the PC and views the output that is displayedexhibit. What is the IP address of the primary domain name server used by the host?

10.10.10.32

192.168.1.5

192.168.1.99

192.168.2.100

As network administrator, what is the subnet mask that allows 510 hosts given the IP address 172.30.0.0?255.255.0.0

255.255.248.0

255.255.252.0

255.255.254.0

255.255.255.0

255.255.255.128

Refer to the exhibit. Each media link is labeled. What type of cable should be used to connect the different deviConnection 1 - rollover cabConnection 2 - straight-thr Connection 3 - crossover cConnection 1 - straight-thr Connection 2 - crossover cConnection 3 - rollover cabConnection 1 - crossover cConnection 2 - rollover cabConnection 3 - straight-thr


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Connection 1 - crossover cConnection 2 - straight-thr Connection 3 - rollover cabConnection 1 - straight-thr Connection 2 - straight-thr Connection 3 - straight-thr

Which combination of network id and subnet mask correctly identifies all IP addresses from 172.16.128.0 thro172.16.159.255?

172.16.128.0 255.255.255.224

172.16.128.0 255.255.0.0

172.16.128.0 255.255.192.0

172.16.128.0 255.255.224.0

172.16.128.0 255.255.255.192

Partea superioar a macheteiWhich two types of media can bandwidth up to 1 Gb/s? (Cho

10 BASE-T

100 BASE-T

100 BASE-FX

1000 BASE-TX

1000 BASE-SX

Refer to the exhibit. Host X is unable to communicate with host Y. Which command can be run at host X to detwhich intermediary device is responsible for this failure?

telnet 192.168.1.1

ping 192.168.1.1

ftp 192.168.1.1

tracert 192.168.1.1What can the user do from the command prompt, Router(config-line)# ?

Configure one of the


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network interfaces.Configure one of the

physical or virtuallines.Verify the runningconfiguration on thedevice.Configure the

parameters for oneof the routing

protocols.Which OSI layer uses a connection-oriented protocol to ensure reliable delivery of data?

applicationlayer

presentation

layer session layer

transport layer

Refer to the exhibit. What three statements are true about the IP configuration that is shown?(Choose three.)

The prefix of the subnetmask is /26.The network on whichthis computer resides canhave 30 hosts.The computer is unableto communicate outsideof the local network.The address that isassigned to the computer represents privateaddressing.

The IP address that isassigned to the computer


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is routable on theInternet.The IP address that isassigned as the defaultgateway is valid for thishost.

Which three addresses belong to the category of private IP addresses? (Choose three.)10.0.0.1

127.0.0.1

150.0.0.1

172.16.0.1

192.168.0.1

200.100.50.1

Which three addresses belong to the category of private IP addresses? (Choose three.)10.0.0.1

127.0.0.1

150.0.0.1

172.16.0.1

192.168.0.1

200.100.50.1A network administrator wants to restrict access to the router privileged EXEC mode. Which password should t

administrator use?enable

aux

console

VTYWhat is a benefit of using private addressing for the internal LAN?

Implementation is easier.

Manageability is improved.

Troubleshooting is easier.Public address space is conserved.


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Refer to the exhibit. The network containing router B is experiencing problems. A network associate has isolateissue in this network to router B. What action can be preformed to correct the network issue?

issue the clock rate command on interface0/0/0issue the description command on interfaceSerial 0/0/1issue the ip address command on interfaceFastEthernet 0/0issue the no shutdown command on interfaFastEthernet 0/1

Which fiber connector supports full-duplex Ethernet?

A user types the enable command. What task can be performed at the privileged EXEC mode?Configure the device.

Configure individual interfaces.

Configure individual terminal lines.

Issue show and debug commands.A user types the enable command. What task can be performed at the privileged EXEC mode?

Configure the device.

Configure individual interfaces.

Configure individual terminal lines.

Issue show and debug commands.


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Refer to the exhibit. Host A attempts to establish a TCP/IP session with host C. During this attempt, a framewas captured at the FastEthernet interface fa0/1 of router Y. The packet inside the captured frame has the IPsource address 172.16.1.5, and the destination IP address is 172.16.7.24. What is the source MAC address of thframe at the time of capture?

0040.8596.DE82

0060.7320.B826

0060.7320.D632

0010.4F74.AC09

0040.8596.DE81What is the protocol data unit that is associated with the data link layer of the OSI reference model?

data

frame

packet

segment


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Refer to the exhibit. Which logical topology describes the exhibited network?

star ring

point-to-point

multi-accessWhich password would allow a user to establish a Telnet session with a Cisco device?

VTY password

enable password

console password

enable secret password

Refer to the exhibit. PC1 is unable to access PC2. To troubleshoot this problem, the technician needs toconfirm that the next hop interface is operational. Which default gateway address should the technician pingfrom PC1 to confirm this?

10.0.0.254

192.168.0.249192.168.0.250


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10.0.1.254What are two primary responsibilities of the Ethernet MAC sublayer? (Choose two.)

frame delimiting

data encapsulation

logical addressing

error detection

accessing the media

Refer to the exhibit. A technician has been asked to test connectivity from PC1 to a remote network.Which action will indicate if there is remote connectivity?


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What information is contained in the header of Layer 3 to help data delivery? port number


destination host logical address

virtual connection identifier What information is contained in the header of Layer 3 to help data delivery?

port number


destination host logical address

virtual connection identifier Which device should be used for routing a packet to a remote network?

access switch

DHCP server

hub

router

Refer to the exhibit. Interface Fa0/0 on router A is generating excessive broadcast traffic. Which LANsegments will affected by the excessive broadcasts?

Only the 192.168.1.200/30 network will be affected.

Only the link between 192.168.1.201 and port Fa0/5 on SW1 will be affected.

Both the 192.168.1.200/30 and 192.168.1.204/30 networks will be affected.

Only the links between 192.168.1.201 and port Fa0/7 on SW2 will be affected.What is the effect of the command copy running-config tftp ?

copies the configuration from a remote machine into RAM

copies the configuration from a remote machine into NVRAM

copies the configuration currently in RAM to a remote machine


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copies the configuration currently in NVRAM to a remote machinePartea superioar a macheteiWhich TCP/IP model layer creates additional overhead on network resources dueto acknowledgments, tracking, and retransmission of data?

internettransport

application

network access

What purpose does a hostname serve on a router?uniquely identifies a router on the internet

used by routing protocols to identify peer routers

provides device identification to users logging on remotely

determines the hosts that are allowed to connect to the deviceWhile configuring a router, a network technician wants to name the router. Which promptshould the technician see when entering the hostname command?

Router>

Router#

Router(config)#

Router(config-line)#To enhance security in a network, the network administrator uses these commands:

Router(config)# line console 0Router(config-line)# password j1mdi2Router(config-line)# login

What two conclusions are evident from these commands? (Choose two.)Users who attempt to connect to the console port of the router must enter a password.

The entries permit access through the console by the use of j1mdi2 as the password.

The entries eliminate the need for authentication.

Access through the console will be denied because the console configuration is incomplete.

The entries prevent passwords from being displayed as plain text.


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Refer to the exhibit. Which set of devices contains only intermediary devices?A, B, D, G

A, B, E, F

C, D, G, I

G, H, I, JWhich communication tool allows real-time collaboration?

wiki

e-mailweblog

instant messagingWhich memory contents will change as a result of using the Router# erase startup-config command on a route

RAM

ROM

flash

NVRAM

What information can be gathered by using the command netstat ?the default gateway

the routing protocol

active TCP connections

the locally configured subnet mask


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Refer to the exhibit. A user wants to access the Internet from the PC. A part of the running configuration of the

shown. Which default gateway IP address should be configured at the PC to enable this access?10.1.192.1

10.1.192.2

10.1.192.54

192.31.7.1

Refer to the exhibit. A user wants to access the Internet from the PC. A part of the running configurationof the router is shown. Which default gateway IP address should be configured at the PC to enable thisaccess?

10.1.192.1

10.1.192.2

10.1.192.54

192.31.7.1

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CCNA 1_Practice Exam-2012