ccna interview questions and answers

Part - 23 CCNA Interview Questions and Answers

111 Identify the administrative distance and appropriate routing protocol?

A.) RIP = 255, IGRP = 100

B.) RIP = 100, IGRP = 120

C.) RIP = 1, IGRP = 0

D.) RIP = 120, IGRP = 100

Ans D

The administrative distance for RIP is 120 and IGRP is 100. The lower the AD the better the routing information.

112 Which OSI layer incorporates the MAC address and the LLC?

A.) Data link

B.) Network

C.) Physcial

D.) Transport

Ans): A

Layer 2 the Data-Link layer incorporates the MAC and LLC sublayers

113 If configuring a Cisco router to connect to a non-Cisco router across a Frame Relay network, which encapsulation type would you select?

A.) Q933a

B.) ISDN

C.) IETF

D.) CISCO

E.) ANSI

Ans C

There are two types of Frame Relay encapsulations; Cisco and IETF. IETF is required when connecting a Cisco to a non-Cisco router.

114 Identify the 2 items that TCP and UDP share in common?

A.) Both use port numbers to identify upper level applications

B.) Operate at the Network layer

C.) Both are Transport protocols

D.) Both are reliable communications

Ans A C

TCP and UPD are both layer 4 Transport protocols and both use port number to identify upper level applications.

115 Identify 3 characteristics of IP RIP?

A.) Distance vector

B.) Administrative distance is 120

C.) Periodic updates every 60 seconds

D.) Uses a composite metric

E.) Can load balance

Ans A B E

IP RIP is a distance vector protocol, it can load balance up to 4 equal cost paths and it's rating of trustworthiness is 120.