Dynamic packet filters firewall are fourth generation firewalls that work at ........

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Dynamic packet filters firewall are fourth generation firewalls that work at

This questions was previously asked in

RRB Officer Scale-I Mains (1st Oct 2022)

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Application layer

TCP

UDP

TCP, UDP

Session Layer

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Explanation:

- Dynamic packet filter firewalls inspect packets at a deeper level than traditional packet filter firewalls. They offer better security by keeping track of the state of network connections.

- Option 1: Application layer - This layer involves high-level protocols like HTTP and FTP. Firewalls working at this layer inspect data for specific applications.

- Option 2: TCP - Transmission Control Protocol is used for reliable communication. Firewalls track states of TCP connections to provide security.

- Option 3: UDP - User Datagram Protocol is used for simpler, connectionless communication. It's less secure than TCP but faster.

- Option 4: TCP, UDP - Correct Answer: Dynamic packet filters work at both TCP and UDP protocols. They manage the state of sessions established via these protocols.

- Option 5: Session Layer - Part of the OSI model, it establishes, manages, and terminates connections.