640 - 607

Explanation: The TCP/IP protocol stack is very similar to the OSI model protocol stack. With TCP/IP connection orientated and connection less communication is possible. Both IP and UDP are both connectionless. TCP is a connection-orientated protocol.

Incorrect Answers:

B is incorrect; RARP and not ARP provide this functionality.

D is incorrect; ICMP is connection less.

Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 215-218.

Q. 83

What is the two most common request/reply pair with ICMP messages when using the ping command? (Choose two)

A.Echo reply

B.Echo request

C.Source quench

D.Fragment offset

E.Information redirect

F.Destination reachable

G.Echo control message

Answer: A and B.

Explanation: The most common form of these messages are pings, ICMP echo request, and ICMP echo replies.

Incorrect Answers:

C, D, E, F, and G are incorrect; these are not types of ICMP messages.

Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 217-219.

Q. 84

Which two protocol tools use ICMP? (Choose two)

A.Ping

B.Telnet

C.Configure

D.Trace route

E.Show commands

F.Standard access list

Answer: A, D

Leading the way in IT testing and certification tools, www.testking.com

- 56 -

Page 56
Image 56
Cisco Systems 2 manual Answer a and B, Which two protocol tools use ICMP? Choose two