ccna interview questions and answers

Part - 33 CCNA Interview Questions and Answers

161 What is the purpose of ARP?

A.) IP to host name resolution

B.) Host name to IP address resolution

C.) Mac to IP address resolution

D.) IP to Mac address resolution

Ans D

Address Resolution Protocol resolves the MAC address if the IP address is known. It is a layer 3 protocol.

162 Which OSI layer establishes, maintains and terminates sessions between hosts?

A.) Application

B.) Physical

C.) Data-Link

D.) Presentation

E.) Network

F.) Session

Ans F Layer 5 the Session layer performs this function.

163 Which statement is true regarding Administrative distance?

A.) It is a metric

B.) Number of hops between two routers

C.) Trustworthiness of the routing information

D.) RIP Administrative distance is 100

Ans C

Administrative distance is rating of trustworthiness of the routing information. The lower the AD the better the information.

164 Identify the purpose of the Ping command?

A.) Share routing information with a neighbor router

B.) Transmit user data when buffers are full

C.) Test connectivity at layer 3

D.) Test entire protocol stack

Ans C

The ping command tests layer 3 connectivity.

165 Identify the order of the 5 step encapsulation?
1. Create the segment
2. Convert the frame to bits
3. Create the packet
4. Create the frame
5. User creates the data

A.) 1,2,4,2,5

B.) 2,1,3,4,5

C.) 5,1,3,4,2

D.) 5,3,4,1,2

Ans C

Cisco 5 step encapsulation.
1) User creates Data
2) Data is converted into a segment at layer 4
3) The segment is converted to packet at layer 3
4) The packet it converted into a frame at layer 2
5) The frame is converted into bits at layer 1