Valid Exam Questions - Latest CompTIA SY0-401 Real Exam Dumps

Question No : 6

Which of the following firewall types inspects Ethernet traffic at the MOST levels of the OSI model?

A. Packet Filter Firewall

B. Stateful Firewall

C. Proxy Firewall

D. Application Firewall

Answer: B

Explanation:

Stateful inspections occur at all levels of the network.

Incorrect Answers:

A: Packet-filtering firewalls operate at the Network layer (Layer 3) and the Transport layer (Layer 4) of the Open Systems Interconnect (OSI) model.

C: The proxy function can occur at either the application level or the circuit level.

D: Application Firewalls operates at the Application layer (Layer7) of the OSI model.