ccna interview questions and answers

Part - 27 CCNA Interview Questions and Answers

131 Identify the hardware component used to store buffers, tables, running-configuration etc?

A.) NVRAM

B.) ROM

C.) RAM

D.) Flash

Ans C

RAM is the dynamic memory area. ROM contains the boot strap code, NVRAM contains the startup-config and Flash contains the IOS.

132 Identify 3 UDP characteristics?

A.) Reliable communication protocol

B.) Applications that use UDP must incorporate reliability

C.) Connection-less oriented

D.) Incorporates no handshaking

Ans B C D

UPD is a layer 4 Transport protocol. It is connection-less because it does establish a connection therefore the 3 step handshake is not needed, it does NOT implement any flow control or acknowledgments. Any application that uses UDP must incorporate any needed reliability.

133 Identify the IPX standard access-list number range?

A.) 600 - 699

B.) 1000 - 1099

C.) 1 - 99

D.) 100 - 199

E.) 800 - 899

Ans E

IPX standard access-list range is 800-899.

134 Which OSI layer provides best effort end to end packet delivery?

A.) Data-Link

B.) Presentation

C.) Network

D.) Transport

E.) Physical

F.) Application

Ans C

Layer 3 the Network layer performs this function.

135 Identify the 2 methods to modify the routers boot sequence?

A.) Setup program

B.) Boot system commands

C.) RXBoot

D.) Config-register

Ans B D

'Boot system' command the 'config-register' are used to manipulate the boot sequence.