What would be an advantage of enabling weighted fair queuing (WFQ) instead of SP?

A network architect has created a quality of service (QoS) for an HP 5900 Series switch that uses four traffic classes. Class of Service (CoS) 5 for voice traffic. CoS 4 for Video traffic. And CoS 0 for everything else. The switch ports implement strict priority (SP) queuing.

What would be an advantage of enabling weighted fair queuing (WFQ) instead of SP?
A . When congestion occurs, the port will randomly drop traffic in the CoS 3 and CoS 0 queues, preventing TCP synchronization that increase congestion
B . The architect can ensure that voice traffic is always forwarded before bandwidth intensive video traffic
C . The architect can guarantee specific bandwidth to each class but prevent video an SAP applications from starving out other applications entirely
D . When congestion occurs, the port will buffer traffic in lower priority queues rather than drop it immediately as it does with SP queuing

View Answer

Answer: C