ccna interview questions and answers

Part - 5 CCNA Interview Questions and Answers

21 Which NetWare protocol provides link-state routing?

• A. NLSP

• B. RIP

• C. SAP

• D. NCP

Ans: A

NetWare Link Services Protocol (NLSP) provides link-state routing. SAP (Service Advertisement Protocol) advertises network services. NCP (NetWare Core Protocol) provides client-to-server connections and applications. RIP is a distance vector routing protocol.

22 As a system administrator, you want to debug igrp but are worried that the "debug IP igrp transaction" command will flood the console. What is the command that you should use?

• A. debug IP igrp event

• B. debug IP igrp-events

• C. debug IP igrp summary

• D. debug IP igrp events

Ans D

The "debug IP igrp events" is used to only display a summary of IGRP routing information. You can append an IP address onto either command to see only the IGRP updates from a neighbor.

23 What does the following series of commands accomplish? router igrp 71 network 10.0.0.0 router igrp 109 network 172.68.7.0

• A. It isolates networks 10.0.0.0 and 172.68.7.0.

• B. It loads igrp for networks 109 and 71.

• C. It disables RIP.

• D. It disables all routing protocols.

Ans A

It isolates network 10.0.0.0 and 172.68.7.0 and associates autonomous systems 109 and 71 with IGRP. IGRP does not disable RIP, both can be used at the same time.

24 In the command "router igrp 109" what does 109 signify?

• A. an autonomous system

• B. any network number which the router is attached to

• C. the allowable length of the routing table

• D. the network socket number

Ans A

The Cisco IOS global configuration command "router igrp xxx" is used to configure the Interior Gateway Routing Protocol. In this case, the 109 is called the process-id , which can also be used for an autonomous system number.

25 IGRP supports a feature that allows traffic to be distributed among up to 6 (4
default) paths to provide greater overall throughput and reliability. What is this called?

• A. unequal-cost load balancing

• B. equal-cost load balancing

• C. proportionate load balancing

• D. low cost load balancing

Ans A

An unequal-cost load balancing is used to provide alternate paths for data distribution on an internetwork. Cisco developed this method to use unused or under utilized links to increase bandwidth and network availability.