Free Practice Protocol Analysis WCNA Exam Questions 2025

Stay ahead with 100% Free Wireshark Certified Network Analyst WCNA Dumps Practice Questions

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Total 293 Questions | Updated On: Apr 24, 2025

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Question 1

Identify a correct statement related to TCP recovery process.

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

Identify a correct statement about TCP acknowledgment & sequence numbering.

A : Starting sequence numbers cannot be larger than 65,535 because this is a 2-byte field.

B : The Acknowledgment Number field indicates the next sequence number expected from the other side of the connection.

C : Both sides of a TCP connection must agree on an Initial Sequence Number value.

D : The sequence number always increments by 1 for each data packet transmitted.

Answer: B

Question 3

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

A : MAC address name resolution

B : Transport name resolution

C : Network name resolution

D : SMI name resolution

Answer: B

Question 4

You can identify compromised hosts that are communicating with Command and Control (C&C) servers by capturing traffic close to the network egress point and filtering on the IP addresses of the suspect C&C servers.

A : True

B : False

Answer: A

Question 5

Which link should be tapped to access and monitor a network ?

A : Link between two routers

B : Link between routers and monitoring probe

C : Link between switch and Network Packet Broker

D : Link between two monitoring probes

Answer: A

Page: 1 / 59

Total 293 Questions | Updated On: Apr 24, 2025

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