PrepAway - Latest Free Exam Questions & Answers

How do network sniffers work?

How do network sniffers work?

PrepAway - Latest Free Exam Questions & Answers

A.
They probe systems on a network segment.

B.
They listen for ARP requests and ICMP packets.

C.
They require an extra NIC to be installed and configured.

D.
They put the NIC into promiscuous mode.

Explanation:
A sniffer is a device or software component that puts the NIC in
promiscuous mode, meaning the NIC will pick up all frames it "sees"
instead of just the frames addressed to that individual computer. The sniffer then
shows the output to the user and can have capture and filtering capabilities.


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