Which of the following firewalls inspects the actual contents of packets?

Question

Options

• APacket filtering firewall
• BApplication-level firewall
• CCircuit-level firewall
• DStateful inspection firewall

• A
  8% (1)
• B
  85% (11)
• D
  8% (1)

Explanation

The application level firewall inspects the contents of packets, rather than the source/destination or connection between the two. An Application level firewall operates at the application layer of Answer option C is incorrect. The circuit-level firewall regulates traffic based on whether or not a trusted connection has been established. It operates at the session layer of the OSI model. Answer option A is incorrect. The packet filtering firewall filters traffic based on the headers. It operates at the network layer of the OSI model. Answer option D is incorrect. The stateful inspection firewall assures the connection between the two parties is valid and inspects packets from this connection to assure the packets are not

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