ccna interview questions and answers

Part - 41 CCNA Interview Questions and Answers

211 Identify 2 characteristics of PPP?

A.) Uses LLC to establish the link

B.) Default serial encapsulation

C.) Support multiple layer 3 protocols

D.) Offers two types of authentication; PAP and CHAP

Ans C D

PPP is not the default encapsulation and uses LCP not LLC to establish the link. It support multiple layer 3 protocols and supports authentication.

212 Identify 3 characteristics of a connection oriented protocol?

A.) Path determination

B.) Flow control

C.) Acknowledgements

D.) Uses hop count as metric

E.) 3 step handshake

Ans B C E

Connection oriented protocols must first establish the connection (3 step handshake), employ methods to acknowledge the receipt of data (acknowledgements) and slow down the flow of data if required (flow control).

213 What is the maximum hop count for IP RIP?

A.) Infinity

B.) 16

C.) 15

D.) 1

Ans C

15 is the maximum hop count, underscoring the size limitation of RIP.

214 What is Cisco's default encapsulation method on serial interfaces?

A.) ANSI

B.) Cisco

C.) Q933a

D.) HDLC

Ans D

Cisco's implementation of HDLC is only compatible with Cisco routers. It is the default encapsulation type for serial interfaces.

215 Which of the following is a characteristic of a switch, but not of a repeater?

A.) Switches forward packets based on the IPX or IP address in the frame

B.) Switches forward packets based on the IP address in the frame

C.) Switches forward packets based on the MAC address in the frame

D.) Switches forward packets based only on the IP address in the packet

Ans C

A repeater regenerates the signal it receives, a switch makes decisions based upon MAC addresses to determine whether a frame should be forwarded. Repeaters forward all packets.