JNCIS-ENT: Juniper Networks Certified Specialist – Enterprise Routing and Switching (2025) — Question 36

Which statement describes BFD?

Answer options

• A. BFD rapidly detects link failures.
• B. BFD provides route loop protection.
• C. BFD provides broadcast storm protection.
• D. BFD provides high availability with multiple Routing Engines.

Correct answer: A

Explanation

The correct answer, A, highlights BFD's primary function of swiftly detecting link failures, making it crucial for maintaining network reliability. Options B, C, and D incorrectly attribute functions to BFD that are not part of its role; BFD does not provide route loop or broadcast storm protection, and high availability is not achieved solely through BFD.