Question 1
A global logistics company is deploying VMware SD-WAN to 300 warehouses. Each warehouse has a primary broadband link and a backup LTE link. The company's primary requirement is to ensure that Point-of-Sale (PoS) transaction data, which is highly sensitive to latency and jitter, is always routed over the link with the best real-time performance metrics. All other traffic should use the broadband link unless it fails. Which Business Policy configuration is the most effective way to achieve this?
Answer and explanation
Correct answer: D
The most effective method is to create a Business Policy for the PoS application traffic and set the Link Steering to 'Mandatory' while selecting both available links. This activates Dynamic Multipath Optimization (DMPO) for that traffic class. DMPO will continuously monitor both links for latency, jitter, and loss, and it will steer the PoS traffic on a per-packet basis to the link that provides the best performance at any given moment, fulfilling the core requirement. Other methods do not guarantee routing based on real-time performance.