Monday, November 26, 2012

CCNA questions - Part 12

Another 5 mixed networking Questions to mull over

1. What is the administrative distance of IGRP?

A) 110
B) 1
C) 120
D) 90
E) 100

2. What TCP/IP layer are Telnet, FTP, TFTP and SMTP protocols associated with?

A) Application
B) Host-to-Host / Transport
C) Internet
D) Network Access

3. What determines network addresses when data link addresses are known?

A) Ping

4. What mode are you in when you see this prompt?

A) user exec mode
B) privileged mode
C) global configuration mode
D) interface configuration mode
E) routing protocol configuration

5. What does Ethernet 0 is up, line protocol is down indicate?

A) Keepalive or framing issue
B) Carrier detect is not present
C) The interface is shutdown


1. Correct Answer: E

IGRP has an administrative distance of 100.

Administrative distance is used by Cisco routers to select the best path when there are two
or more different routes to the same destination from two different routing protocols.
administrative distance defines the reliability of a routing protocol.

2. Correct Answer: A

3. Correct Answer: D

Reverse Address Resolution Protocol (RARP) is used by a host computer to request its IPv4
address from an administrative host, it provides the administrative host with its hardware
address (MAC address).

4. Correct Answer: E

Here is a summary of Cisco IOS router command prompts:

Router> - User EXEC mode
Router# - Privileged EXEC mode
Router(config)# - Global configuration mode
Router(config-if)# - Interface level configuration mode
Router(config-router)# - Routing engine level within configuration mode
Router(config-line)# - Line level (vty, tty, async) within configuration mode

5. Correct Answer: A

The various states of an interface:

Ethernet0 is up, line protocol is up - The interface is functioning correctly.

Ethernet0 is down, line protocol is down - This message usually represents a physical
interface problem. The cable may be disconnected. This can also occur if this interface is
connected to another router whose interface has been shutdown.

Ethernet0 is up, line protocol is down - The Physical layer connectivity is not the issue.
The line protocol being down is either a clocking issue (keepalives) or a mismatch of the
frame types being used on connected devices. 

  “Successful people are always looking for opportunities to help others. Unsuccessful people are always asking, "What's in it for me?"”

    Brian Tracy