CISSP – Information Systems Security Engineering Professional (ISSEP) — Question 6

Which of the following types of firewalls increases the security of data packets by remembering the state of connection at the network and the session layers as they pass through the filter

Answer options

• A. Stateless packet filter firewall
• B. PIX firewall
• C. Stateful packet filter firewall
• D. Virtual firewall

Correct answer: C

Explanation

The correct answer is C, the Stateful packet filter firewall, as it maintains the state of active connections and makes decisions based on the context of the traffic. Option A, the Stateless packet filter firewall, does not track connection states, leading to less secure filtering. Options B and D refer to specific types of firewalls but do not primarily focus on the stateful inspection feature.