Which statement best describes a stateful firewall?

### Why this is right A stateful firewall records active connections in a session table and uses that context when deciding how to handle later packets. This lets it recognize return traffic belonging to an allowed connection. ### The concept A stateless firewall evaluates packets individually, without remembering a connection. A stateful firewall tracks connection context, so it can distinguish a reply packet from an unrelated new connection. Stateful inspection is described as the most common form of firewall inspection in the material. ### The other options - **A. It evaluates each packet independently and keeps no connection table.** This describes stateless inspection, not stateful inspection. - **C. It translates every private address into a public address.** This describes a possible network address translation function, not state tracking. - **D. It permits all traffic that enters a security zone.** Zones group interfaces and addresses; they do not automatically allow traffic. ### Terms - **Stateful firewall**: A firewall that tracks active connections. - **Stateless firewall**: A firewall that evaluates packets individually without tracking connections. ### Remember Stateful means the firewall remembers connection context.