CCNA (V.31) Semester-2- Question - Answers- Paper 12 - part-1

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CCNA (V.31) Semester-2- Question - Answers- Paper 12 - part-1











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1 .

Which of the following could describe the devices labeled "?" in the graphic? (Choose three.)

DCE*
CSU/DSU*
LAN switch
modem*
hub

2 .

Router A and Router B have been correctly configured to use RIP as a dynamic routing protocol and all intefaces on Router A and Router B are reporting "interface is up, line protocol is up" status. RIP is then configured on Router C using the following commands:

RouterC(config)# router rip
RouterC(config-router)# network 192.168.4.0
RouterC(config-router)# network 172.16.0.0

If no additional routing is configured on Router A, Router B, and Router C, what will be the result?
Networks 192.168.12.0/24, 192.168.4.0/24, and 172.16.0.0/16 will be unreachable from Router A.*
Router A will have no knowledge of network 192.168.12.0/24, but will have routes to networks 192.168.4.0/24 and 172.16.0.0/16.
All networks shown in the graphic will be reachable by Router A, Router B, and Router C.
Networks 192.168.4.0/24 and 172.16.0.0/16 will be unreachable from Router A and Router B.
3. The following access list has been correctly applied to a router interface:

access-list 52 deny 172.30.65.52
access-list 52 permit any

Which of the following statements are true about this ACL? (Choose three.)
This is an invalid ACL because the wildcard mask is missing from the command.*
A wildcard mask of 0.0.0.0 is assumed for 172.30.65.52.
This is an extended IP access list.
All traffic from 172.30.65.51 will be permitted.*
This is a standard IP access list.*


4.
Refer to the graphic. Assuming default metrics are used and the network is fully converged, which path will the IGRP routing protocol use to send a packet from Router A to Router F?
A, D, E, F
A, B, D, E, F*
A, C, D, E, G, F
A, B, D, E, G, F



5.

Neither router in the graphic has a host table or DNS available. The interfaces and passwords have been correctly configured. Which of the following commands will initiate a Telnet session? (Choose two.)

ATL> connect CHI
ATL> telnet CHI
ATL# 192.168.4.2*
ATL# connect ATL
CHI# telnet 192.168.4.1*
CHI# telnet ATL




6.What will occur if the command service password-encryption is entered on a router? (Choose two).
It will allow only the user EXEC mode password to be encrypted.
It will set an MD5 hashing algorithm on all unencrypted passwords.
It will apply a weak encryption to all unencrypted passwords.*
It will set the enable secret password to be encrypted.
It will apply an MD5 hashing algorithm to encrypt the console and telnet passwords.
It will configure the user EXEC mode, telnet, and enable passwords as encrypted.*



7.A network administrator must configure a serial interface with an IP address. The configuration must also identify the remote site to which the interface is connected. Which set of commands will meet these requirements?
Chicago(config)# description San Jose T1
Chicago(config)# interface serial0/0
Chicago(config-if)# ip address 192.168.204.9 255.255.255.252

Chicago(config)# interface serial0/0 *
Chicago(config-if)# ip address 192.168.204.9 255.255.255.252
Chicago(config-if)# description San Jose T1

Chicago(config)# interface serial0/0
Chicago(config-if)# ip address 192.168.204.9 netmask 255.255.255.252
Chicago(config-if)# description San Jose T1

Chicago(config)# interface serial0/0
Chicago(config-if)# ip address 192.168.204.9 255.255.255.252
Chicago(config-if)# remote site San Jose T1

Chicago(config)# interface serial0/0
Chicago(config-if)# ip address 192.168.204.9 255.255.255.252
Chicago(config-if)# interface description San Jose T1


8.A network administrator has enabled RIP on routers B and C in the network diagram. Which of the following commands will prevent RIP updates from being sent to Router A?
A(config)# router rip
A(config-router)# passive-interface S0/0

B(config)# router rip
B(config-router)# network 192.168.25.48

B(config-router)# network 192.168.25.64
A(config)# router rip

A(config-router)# no network 192.168.25.32*
B(config)# router rip

B(config-router)# passive-interface S0/0
A(config)# no router rip



9.Which of the following describe Telnet on a router? (Choose two.)
Simultaneous incoming Telnet sessions can be hosted by a router.*
Telnet is the most basic testing mechanism available.
A Telnet session can only be initiated in privileged EXEC mode.
Five separate Telnet lines are specified by the configuration line vty 0 4.*
Telnet is classified as a network layer protocol.

10.Which commands will show the status and IP address of all interfaces on a router? (Choose two.)
show protocols*
show ip protocols
show version
show interfaces*
show ip ports

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