ccna interview questions and answers

Part - 39 CCNA Interview Questions and Answers

201 Identify the 3 methods routers learn paths to destinations?

A.) Dynamic routing

B.) None of the above, configured by default

C.) Default routes

D.) Administrative distance

E.) Static routes

Ans A C E

Routers can learn paths via 3 different sources; static routes, dynamic routing protocols (i.e. RIP) and default routes.

202 Identify the purpose of the following command 'ip route 192.168.100.0 255.255.255.0 10.1.0.1'

A.) Enabling a dynamic routing protocol

B.) Creating a static route to the 10.1.0.0 network

C.) Teaches the router about the distant network 192.168.100.0 and how it can be reached via 10.1.0.1

D.) Assigning the IP address 192.168.100.0 to an interface

Ans C A

static routes teaches the router about a distant network and the next hop to reach that network. Command syntax: ip route network-address subnet-mask next-hop-address

203 Based upon the 1st octet rule identify the range for a Class A address?

A.) 1 - 126

B.) 192 - 223

C.) 128 - 191

D.) 1 - 191

Ans A

Class A address has the 1st octet between 1 - 126. Class B between 128 - 191 and Class C between 192 - 223.

204 What does a Standard IP Access-list use as test criteria?

A.) IP source address

B.) IP source and destination address, protocol numbers and port numbers

C.) IPX source and destination address

D.) Source MAC address Ans A Standard IP access list use only source address.

205 What is the function of the Transport layer and which protocols reside there?

A.) MAC addressing - IP

B.) Interhost communication - SQL, NFS

C.) Best effort Packet delivery - TCP, UDP

D.) End-to-end connections - TCP, UDP

Ans D

Layer 4, the Transport layer, is responsible for end-to-end connections. The two TCP/IP protocols that reside there are TCP and UDP.