Which of the following statements pertaining to packet filtering NOT true?

A.
It is based on ACLs.

B.
It is not application dependent.

C.
It operates at the network layer.

D.
It keeps track of the state of a connection.

Explanation:
Packet filtering firewalls are stateless. They do not keep track of the state of a connection.
Incorrect Answers:
A: The device that is carrying out packet filtering processes is configured with ACLs, which dictate the type of
traffic that is allowed into and out of specific networks.
B: Packet filtering firewalls are application dependent.
C: Packet filtering is a firewall technology that makes access decisions based upon network-level protocol
header values.
D: Packet filtering works at the network and transport layers, not at the application layer. It is not application
dependent.References:
Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 630