SNCF — Securing Networks with Firepower — Question 141

Which firewall design will allow it to forward traffic at layers 2 and 3 for the same subnet?

Answer options

• A. routed mode
• B. Cisco Firepower Threat Defense mode
• C. transparent mode
• D. integrated routing and bridging

Correct answer: D

Explanation

The correct answer is D, integrated routing and bridging, as it allows a firewall to operate at both Layer 2 and Layer 3 levels on the same subnet. Options A, B, and C do not provide the same functionality; routed mode only works at Layer 3, while transparent mode operates at Layer 2 and Cisco Firepower Threat Defense mode does not specify the ability to bridge traffic between layers.