How does MEF SD-WAN address latency-sensitive applications?

• A. By shutting down QoS controls to simplify operations.
• B. By increasing the number of tunnels to every service.
• C. By using application-aware routing to low-latency paths, enforcing QoS, and enabling local breakout for certain cloud services to reduce backhaul delay.
• D. By routing all traffic through a single central location.

Answer: (C)

Latency-sensitive applications need routing decisions that minimize delay, jitter, and packet loss. MEF SD-WAN handles this by using application-aware routing to choose the best, lowest-latency paths for each application, while enforcing QoS so critical traffic gets priority and guaranteed bandwidth even during congestion. It also supports local breakout, which lets traffic destined for certain cloud services exit the WAN at the local edge rather than being funneled back to a central hub, drastically reducing backhaul delay. Together, these practices ensure real-time or interactive apps, such as voice and video, experience lower latency and more consistent performance.

Shutting off QoS would remove prioritization and worsen performance for latency-sensitive traffic. Simply increasing the number of tunnels or routing all traffic through a single central location does not inherently shorten paths for those apps and can add overhead or backhaul delay, making them less suitable for reducing latency.