CISA Certified Information Systems Auditor – Question1835

With Deep packet inspection, which of the following OSI layers are involved?

A. Layer 2 through Layer 7
B. Layer 3 through Layer 7
C. Layer 2 through Layer 6
D. Layer 3 through Layer 6
E. Layer 2 through Layer 5
F. None of the choices.

Correct Answer: A

Explanation:

Explanation:
Deep packet inspection (DPI) is a form of computer network packet filtering that examines the data part of a through-passing packet, searching for non- protocol compliance or predefined criteria to decide if the packet can pass.
DPI devices have the ability to look at Layer 2 through Layer 7 of the OSI model.