Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) — Question 205

After a series of unexpected device failures on the network, a Cisco engineer is deploying NSF on the network devices so that packets continue to be forwarded during switchovers. The network devices reside in the same building, but they are physically separated into two different data centers. Which task must the engineer perform as part of the deployment?

Answer options

• A. Implement an L2VPN with the failover peer to share state information between the active and standby devices.
• B. Implement OSPF to maintain the link-state database during failover.
• C. Implement VRFs and specify the forwarding instances that must remain active during failover.
• D. Implement Cisco Express Forwarding to provide forwarding during failover.

Correct answer: B

Explanation

The correct answer is B because OSPF is necessary to maintain the link-state database, which is crucial for routing during failover scenarios. Options A and C are not directly related to maintaining the link-state database, while option D, although important for packet forwarding, does not address the link-state database maintenance required for NSF functionality.