Which is a false statement about firewalls?

A. Firewalls can protect a network from external attacks.
B. Firewalls can protect a network from internal attacks.
C. Firewalls can provide stateful packet inspection.
D. Firewalls can control application traffic.

B. Firewalls cannot provide protection from internal attacks on internal resources. They are designed to protect networks from external attacks or attacks emanating from the outside or directed toward the Internet.