200-201 · Question #68
At which layer is deep packet inspection investigated on a firewall?
The correct answer is C. application. Firewalls that perform DPI look beyond the typical header information (which is examined at lower layers such as the network, transport, or data link layers) and inspect the actual data payload of packets at the application layer. This allows for more detailed analysis of the…
Question
At which layer is deep packet inspection investigated on a firewall?
Options
- Ainternet
- Btransport
- Capplication
- Ddata link
How the community answered
(54 responses)- A6% (3)
- B2% (1)
- C91% (49)
- D2% (1)
Explanation
Firewalls that perform DPI look beyond the typical header information (which is examined at lower layers such as the network, transport, or data link layers) and inspect the actual data payload of packets at the application layer. This allows for more detailed analysis of the contents of the packets, enabling better identification and control of network traffic based on application-specific characteristics, protocols, or signatures.
Topics
Community Discussion
No community discussion yet for this question.