Network layer firewall works as a –
2022
Network layer firewall works as a –
- A.
Frame filter
- B.
Packet filter
- C.
Both (A) and (B)
- D.
None of these
Attempted by 86 students.
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Correct answer: B
Network layer firewalls operate at Layer 3 of the OSI model. At this layer, data is transmitted in packets rather than frames. Consequently, these firewalls inspect and filter traffic based on IP packet headers instead of MAC addresses.