Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) — Question 431

What is an advantage of implementing BFD?

Answer options

• A. BFD is deployed without the need to run any routing protocol.
• B. BFD provides faster updates for any flapping route.
• C. BFD provides millisecond failure detection.
• D. BFD provides better capabilities to maintain the routing table.

Correct answer: C

Explanation

The correct answer is C, as BFD is specifically designed to provide rapid failure detection, often in the millisecond range, which is crucial for maintaining network stability. Option A is incorrect because BFD typically complements routing protocols rather than being completely independent. Option B, while true about faster updates, does not capture the primary advantage of BFD's speed in failure detection. Option D is misleading, as BFD's focus is on failure detection rather than directly improving routing table management.