SNCF — Securing Networks with Firepower — Question 229

An engineer plans to reconfigure an existing Cisco FTD from transparent mode to routed mode. Which additional action must be taken to maintain communication between the two network segments?

Answer options

• A. Assign a unique VLAN ID for the interface in each segment.
• B. Update the IP addressing so that each segment is a unique IP subnet.
• C. Configure a NAT rule so that traffic between the segments is exempt from NAT.
• D. Deploy inbound ACLs on each interface to allow traffic between the segments.

Correct answer: B

Explanation

The correct answer is B because when transitioning to routed mode, each segment must have its own unique IP subnet to facilitate proper routing. Options A and D do not address the need for unique IP addressing, and option C is unnecessary since NAT is not required for communication between directly connected segments.