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.

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.