Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) — Question 1059

When using BFD in a network design, which consideration must be made?

Answer options

• A. BFD is used with dynamic routing protocols to provide subsecond convergence.
• B. BFD is used with first hop routing protocols to provide subsecond convergence.
• C. BFD is used with NSF and graceful to provide subsecond convergence.
• D. BFD is more CPU-intensive than using reduced hold timers with routing protocols.

Correct answer: A

Explanation

The correct answer is A because BFD is specifically designed to work with dynamic routing protocols, allowing for faster convergence times. Options B, C, and D are incorrect as they either misrepresent the application of BFD or compare it with other methods that do not achieve the same level of rapid convergence.