Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) — Question 587

What is a function of BFD?

Answer options

• A. failure detection independent of routing protocols and media types
• B. peer recovery after a Layer 2 adjacency failure
• C. peer recovery after a Layer 3 protocol adjacency failure
• D. failure detection dependent on routing protocols and media types

Correct answer: A

Explanation

The correct answer, A, highlights that BFD is designed to detect failures regardless of the specific routing protocols or media types in use. Options B and C focus on recovery processes after adjacency failures, which are not the primary function of BFD. Option D incorrectly states that BFD's failure detection relies on routing protocols and media types, which contradicts its intended purpose.