ccna interview questions and answers

Part - 43 CCNA Interview Questions and Answers

221 What is the difference between TCP and UDP?

A.) TCP is connection-oriented; UDP uses acknowledgements only

B.) TCP is connection-oriented; UDP is connectionless

C.) Both TCP and UDP are connection-oriented, but only TCP uses windowing

D.) TCP and UDP both have sequencing, but UDP is connectionless

ANS B TCP provides guaranteed connection oriented delivery of packets, UDP does not.

222 What does the 'S' mean when looking at the routing table?

A.) Statically connected

B.) Directly connected

C.) Dynamically attached

D.) Shutdown route

Ans A

Statically connected routes are those that an administrator has manually entered into the routing table.

223 Why would you use static routing instead of dynamic routing?

A.) When you want automatic updates of the routing tables

B.) All the time

C.) When you have very few routes and want to conserve bandwidth

D.) When you have a gateway of last resort

Ans C

Static routes are typically used when there are very few routes and you want to conserve bandwidth. Since routing protocols are constantly sending their updates across the wire, it can cause a great deal of congestion.

224 On Cisco catalyst 5000 how would you set the second port on the controller in the first slot to full duplex?

A.) Set port duplex 1/1 full

B.) Set port duplex 1/2 full

C.) Set port duplex 0/1 full

D.) Set port duplex 0/2 full

Ans B

The syntax is: set type duplex slot/port

225 What does the acronym ARP stand for?

A.) Address Resolution Phase

B.) ARP Resolution Protocol

C.) Address Resolution Protocol

D.) Address Recall Protocol

Ans C

The Address Resolution Protocol (ARP) resolved IP addresses to MAC addresses.