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CISSP Practice Question: In a corporate network, the security operations team is implementing a firewall…

Published November 8, 2026 · Free daily CISSP practice question
In a corporate network, the security operations team is implementing a firewall that blocks all incoming traffic from unknown sources while allowing outgoing traffic initiated by internal users to return. Which type of firewall technology is being deployed?
  1. A.Ingress rule
  2. B.Egress rule
  3. C.Stateful inspection
  4. D.Application layer filtering
Correct answer: C. Stateful inspection

A stateful inspection firewall, also known as a dynamic packet filtering firewall, keeps track of established connections and determines the state of packets. It allows returning traffic for outbound connections initiated by internal users, while blocking incoming traffic from unknown sources. This contrasts with static rules that do not account for the state of a connection. In this scenario, the firewall's behavior aligns with stateful inspection, wherein the rules adapt based on the state and context of data flow across the network.

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