Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) — Question 979

After a redundant route processor failure occurs on a Layer 3 device, which mechanism allows for packets to be forwarded from a neighboring router based on the most recent tables?

Answer options

Correct answer: C

Explanation

The correct answer is NSF (Non-Stop Forwarding), which allows a router to continue forwarding packets during a route processor failover by using the most recent routing information. BFD (Bidirectional Forwarding Detection) is used for link failure detection, RP failover refers to the process of switching to a backup route processor, and RPVST+ is a spanning tree protocol that does not directly relate to routing table maintenance during a failover.