Palo Alto Networks Cybersecurity Entry-Level Technician (PCCET) — Question 142

Which network firewall operates up to Layer 4 (Transport layer) of the OSI model and maintains information about the communication sessions which have been established between hosts on trusted and untrusted networks?

Answer options

• A. Group policy
• B. Stateless
• C. Stateful
• D. Static packet-filter

Correct answer: C

Explanation

The correct answer is C, Stateful, as it monitors active connections and can make decisions based on the state of the traffic. Option B, Stateless, does not track session information, making it less secure. Option A, Group policy, is unrelated to firewall functionality, and option D, Static packet-filter, only examines packets without session awareness.