SY0-301 · Question #512
Which of the following firewall types inspects Ethernet traffic at the MOST levels of the OSI model?
The correct answer is B. Stateful Firewall. A Stateful Firewall inspects traffic across the most OSI layers among the options given. It tracks the state of active connections (Layer 4 - Transport), while also examining headers at Layers 3 (Network) and 2 (Data Link). A Packet Filter Firewall only inspects Layers 3-4. A Pro
Question
Which of the following firewall types inspects Ethernet traffic at the MOST levels of the OSI model?
Options
- APacket Filter Firewall
- BStateful Firewall
- CProxy Firewall
- DApplication Firewall
How the community answered
(33 responses)- A6% (2)
- B91% (30)
- C3% (1)
Explanation
A Stateful Firewall inspects traffic across the most OSI layers among the options given. It tracks the state of active connections (Layer 4 - Transport), while also examining headers at Layers 3 (Network) and 2 (Data Link). A Packet Filter Firewall only inspects Layers 3-4. A Proxy or Application Firewall operates at Layer 7, but the question asks about the most OSI levels covered - stateful firewalls uniquely maintain connection state tables that span multiple layers simultaneously, making them the broadest among the choices listed.
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