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Which filter allows an engineer to filter traffic in Wireshark to further analyze the PCAP file by only showing the traffic for LAN 10.11.x.x, between workstations and servers without the Internet?

A.

src=10.11.0.0/16 and dst=10.11.0.0/16

Answers
A.

src=10.11.0.0/16 and dst=10.11.0.0/16

B.

ip.src==10.11.0.0/16 and ip.dst==10.11.0.0/16

Answers
B.

ip.src==10.11.0.0/16 and ip.dst==10.11.0.0/16

C.

ip.src=10.11.0.0/16 and ip.dst=10.11.0.0/16

Answers
C.

ip.src=10.11.0.0/16 and ip.dst=10.11.0.0/16

D.

src==10.11.0.0/16 and dst==10.11.0.0/16

Answers
D.

src==10.11.0.0/16 and dst==10.11.0.0/16

Suggested answer: B

Explanation:

In Wireshark, to filter traffic for a specific LAN, the correct syntax usesip.src==andip.dst==to specify the source and destination IP addresses. The/16denotes the subnet mask, indicating that we are interested in the entire 10.11.x.x range.This filter will show all traffic where both the source and destination IP addresses fall within the specified LAN, excluding any internet traffic.Reference:: The information is based on the Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) course, which covers network intrusion analysis and the use of tools like Wireshark for traffic analysis1.

asked 07/10/2024
David Powell
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