ccna interview questions and answers

Part - 40 CCNA Interview Questions and Answers

206 Identify the 3 Internet layer IP protocols?

A.) NetBios

B.) IPX

C.) ARP

D.) IP

E.) RARP

Ans C D E

NetBios and IPX are not layer 3 IP protocols. IP - Internet Protocol, ARP - Address Resolution Protocol and RARP - Reverse Address Resolution Protocol.

207 IPX routing updates occur how often?

A.) Every 30 seconds

B.) Every 60 seconds

C.) Only as needed

D.) When the remote router asks for an update

Ans B IPX RIP updates are exchanged every 60 seconds.

208 Identify 3 methods not used to prevent routing loops?

A.) Holddown timers

B.) Sequence numbers

C.) Triggered updates

D.) Split horizon

E.) Area hierarchies

F.) Order of router startup

Ans B E F

Area hierarchies, sequence numbers and order of router startup all relate to Link State routing protocols which do NOT incur routing loops.

209 Identify the hardware component that stores the bootstrap program?

A.) ROM

B.) NVRAM

C.) Booter load

D.) RAM

E.) Flash

Ans A

ROM contains the boot strap code.

210 Which OSI layer provides mechanical, electrical, procedural for activating, maintaining physical link?

A.) Presentation

B.) Network

C.) Application

D.) Physical

E.) Transport

F.) Data-Link

Ans D

Layer 1 the Physical layer performs this function.
Layer 6 the Presentation layers performs this function.