HPE Aruba Certified Central Associate (ACCA) — Question 42

You have configured the following on a Core-1 HPE Aruba Networking CX switch for primary and secondary ISP connectivity:
Core-l(config)# ip route 0.0.0.0/0 10.1.251.2
Core-l(config)# ip route 0.0.0.0/0 10.1.252.2 distance 10
The default route via 10.1.251.2 stopped working, and no failover happened. The ISP reported a broken fiber on the path of an upstream device.
In what condition should the route failover to the 10.1.252.2 router?

Answer options

• A. When the uplink-failure-detection enables 10.1.252.2 route.
• B. When the BFD session terminates on 10.1.251.2.
• C. When the default route graceful-restart timer expires.
• D. When the 10.1.251.2 is no longer in the routing table.

Correct answer: D

Explanation

The correct answer is D because failover occurs when the primary route to 10.1.251.2 is no longer available in the routing table. Options A and B involve detection mechanisms but do not indicate the route's presence in the table, while C refers to a timer that does not directly affect the routing table's entries.