Question 1

Identify a correct statement related to TCP recovery process.

Options :

A : Re-transmitted packets use the same sequence number as the original lost packet.

B : The window size field is used in the packet loss recovery process.

C : TCP hosts attempt three re-transmissions before terminating the connection.

D : Packet loss recovery is always started by the client.

Answer: A

Question 2

How do you quickly spot large gapsin time between packets in a trace file containing 6,000 packets?

Options :

A : Open and examine Wireshark'sExpert Infoswindow.

B : Look for packets colorized based on Wireshark-s default coloring rule for high delta times.

C : Set the Time column toSeconds Since Beginning of Captureand scroll through the trace file.

D : Set the Time column toSeconds Since Previously Displayed Packetand sort the Time column.

Answer: D

Question 3

Port resolution can use the TCP/IP stack services file to determine the correct destination port to use in the TCP or UDP header.

Options :

A : True

B : False

Answer: A

Question 4

Identify the name resolution process which can translate port numbers to service names if those port numbers are available in services file of Wireshark ?

Options :

A : MAC address name resolution

B : Transport name resolution

C : Network name resolution

D : SMI name resolution

Answer: B

Question 5

What type of IP address is 127.0.0.1 ?

Options :

A : Public IP address

B : Private IP address

C : Loopback address

D : None of the above

Answer: C

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