JNCIS-SP: Juniper Networks Certified Specialist – Service Provider Routing (2022) — Question 63

Which two high availability features preserve interface and kernel information during reconvergence? (Choose two.)

Answer options

• A. graceful restart (GR)
• B. nonstop bridging (NSB)
• C. nonstop active routing (NSR)
• D. graceful Routing Engine switchover (GRES)

Correct answer: C, D

Explanation

The correct answers are C and D because nonstop active routing (NSR) and graceful Routing Engine switchover (GRES) are specifically designed to maintain critical information during failover processes. Options A and B do not provide the same level of data preservation during reconvergence.