Implementing Cisco SD-WAN Solutions (ENSDWI) — Question 249

Which behavior describes a WAN Edge router running dual DIA when its DPI engine has identified a cloud SaaS application?

Answer options

• A. The gateway WAN Edge router DPI engine accepts the DNS query for SaaS applications, and DNS queries for noncloud applications follow the explicit path.
• B. The WAN Edge DPI engine never selects a subperforming DIA circuit for the first application, and the WAN Edge router finds the SaaS application.
• C. Existing flows change the path and drop the traffic when the performance of the chosen path degrades.
• D. Application traffic flows are routed over best performing DIA circuit, which makes the routing decision based on the best performing path.

Correct answer: D

Explanation

The correct answer, D, is accurate because it indicates that the application traffic is routed through the most efficient DIA circuit, ensuring optimal performance. Options A and B provide incomplete or incorrect handling of DNS queries and performance assessment, while option C incorrectly states that existing flows would drop traffic instead of optimizing it.