Question

Network layer firewall works as a ________

- None of the options

- Frame filter

- Packet filter

Answer 1

Network layer firewall works as a

Packet filter.

Answer 2

Network layer firewall works as a packet filter.

• Packet filtering is generally a security mechanism. It can be used to monitor network access by monitoring incoming or outgoing packets. It can also be used for stopping packets based on source and destination IP address protocols.

On the OSI model Network Layer, packet filtering takes place.

• Frame filter is a filter press in which spaces for the caked solid matter are formed. This is done by inserting hollow frames between each pair of plates instead of providing the plates with raised edges.

Hence, Packet filter is the correct answer.

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