Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) — Question 416

What is the result when an active route processor fails in a design that combines NSF with SSO?

Answer options

• A. The standby route processor temporarily forwards packets until route convergence is complete.
• B. An NSF-aware device immediately updates the standby route processor RIB without churning the network.
• C. An NSF-capable device immediately updates the standby route processor RIB without churning the network.
• D. The standby route processor immediately takes control and forwards packets along known routes

Correct answer: D

Explanation

The correct answer is D because when the active route processor fails, the standby route processor takes over, ensuring that packet forwarding continues without interruption using the established routes. Options A, B, and C are incorrect as they either describe temporary forwarding scenarios or focus on RIB updates, which do not address the immediate control taken by the standby processor in this situation.