JNCIS-SP: Juniper Networks Certified Specialist – Service Provider Routing (2022) — Question 46

Which MPLS feature works with Constrained Shortest Path First (CSPF) to protect against the primary and secondary paths using the same link?

Answer options

• A. fate-sharing
• B. explicit null configuration
• C. policy control over LSP selection
• D. LSP metrics

Correct answer: A

Explanation

The correct answer is A, fate-sharing, which ensures that primary and backup paths do not share the same link, providing redundancy. The other options do not specifically address the issue of link sharing between primary and secondary paths, making them less relevant in this context.