300-420 Question 177
Single answerA company is deploying Cisco SD-WAN in its enterprise network. They want to ensure that the customer edge (CE) devices at branch locations can dynamically prioritize business-critical traffic, monitor link performance, and utilize multiple WAN links for redundancy. Which key feature of the Cisco SD-WAN customer edge devices enables this functionality?
- A
Application-Aware Routing
- B
Centralized Policy Enforcement
- C
Dynamic Multipoint VPN (DMVPN)
- D
Quality of Service (QoS) Marking
Show answer and explanation
Correct answer: A
Explanation
Cisco SD-WAN customer edge devices use Application-Aware Routing to monitor WAN link performance metrics like loss, latency, and jitter in real time. Based on this data, they can dynamically reroute business-critical traffic to the most optimal path, ensuring high performance and redundancy. This makes Application-Aware Routing the key feature for the described scenario.
- A. Correct.
Application-Aware Routing enables the CE devices to monitor link performance in real time and dynamically route traffic based on application requirements, making it the correct choice.
- B. Incorrect.
Centralized Policy Enforcement refers to centralized control of policies, but it does not directly enable dynamic prioritization or link performance monitoring by the CE devices.
- C. Incorrect.
Dynamic Multipoint VPN (DMVPN) is a tunneling technology for secure communication, but it does not provide the dynamic application routing or link performance monitoring required in this scenario.
- D. Incorrect.
Quality of Service (QoS) Marking helps prioritize traffic but does not dynamically monitor link performance or utilize multiple WAN links.