You work as a Network Administrator for Net Perfect Inc. The company has a Linux-based network. You need to configure a firewall for the company. The firewall should be able to keep track of the state

Question

Options

• AStateful firewall
• BHost-based application firewall
• CA network-based application layer firewall
• DAn application firewall

• A
  92% (33)
• B
  6% (2)
• D
  3% (1)

Explanation

Stateful firewalls (A) are designed specifically to track the state of network connections - monitoring active sessions and making decisions based on connection context (e.g., whether a packet belongs to an established, related, or new connection) - which directly satisfies the requirement. Option D (application firewall) inspects application-layer traffic but does not inherently track connection state. Option C (network-based application layer firewall) operates at Layer 7 to filter application traffic, also without native state tracking as its primary function. Option B (host-based application firewall) runs on individual hosts to control per-application traffic, making it the wrong scope (host-level, not network-wide) for this scenario.

Memory tip: Think of "stateful" as the firewall having memory - it remembers the state of each connection, just like a bouncer who tracks who already got in versus who is trying to sneak through a new door.

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