Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) — Question 917

In a Cisco SD-WAN solution, how is the health of a data plane tunnel monitored?

Answer options

• A. with IP SLA
• B. ARP probing
• C. using BFD
• D. with OMP

Correct answer: C

Explanation

The correct answer is C, as Bidirectional Forwarding Detection (BFD) is specifically designed to monitor the health of tunnels by providing rapid failure detection. Options A, B, and D are not primarily used for monitoring the data plane tunnel health; IP SLA is more focused on measuring network performance, ARP probing handles address resolution, and OMP is related to control plane operations.