Certified Ethical Hacker – CEH – 312-50 – Question243

Which of the following statements is TRUE?


A. Sniffers operate on Layer 2 of the OSI model
B. Sniffers operate on Layer 3 of the OSI model
C. Sniffers operate on both Layer 2 & Layer 3 of the OSI model.
D. Sniffers operate on the Layer 1 of the OSI model.

Correct Answer: A

Explanation:

The OSI layer 2 is where packet sniffers collect their data.
References: https://en.wikipedia.org/wiki/Ethernet_frame