Explain how a firewall differs from an access control list (ACL) in traffic control.

• A. A firewall filters traffic based on rules and can be stateful; an ACL is a list of permit/deny rules applied at a device interface to block or allow traffic.
• B. A firewall only monitors traffic; an ACL blocks traffic.
• C. An ACL provides full stateful inspection across all traffic.
• D. A firewall and an ACL perform identical functions in all scenarios.

Answer: (D)