Which two statements about policing, queuing, and scheduling ate true? (Choose two)
A . You can schedule traffic by imposing a maximun data rate on a class of traffic so that excess packets are dropped from the queue
B . You can apply WRED to a class of traffic, which allows packets to be dropped based on the CoS field.
C . The WRED algorithm is a reactive approach that only applies to traffic confestion
D . Policing is the monitoring of data rates for a particular class of traffic, The device can also monitor associated burst sizes
E . Only single rate and dual rate policers can be defined.