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

The correct answer is D. Application-level firewall. 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: A is incorrect. The circuit-level firewall regulates traffic based on…

Network & Perimeter Auditing

Question

Options

ACircuit-level firewall
BStateful inspection firewall
CPacket filtering firewall
DApplication-level firewall

How the community answered

(18 responses)

A
11% (2)
C
6% (1)
D
83% (15)

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: A 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: C is incorrect. The packet filtering firewall filters traffic based on the headers. It operates at the network layer of the OSI model. Answer: B 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 malicious.

Topics

#application-level firewall#deep packet inspection#firewall types#content filtering

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