Your customer has a high priority application housed within a corporate headquarters data center and two regional data centers. The customer cannot afford to provide individual data circuits to each location. The customer requires an end-to-end CoS architecture that will minimize over-subscription in the access switch.
Which three CoS components will meet the customer’s requirements? (Choose three.)
A. CoS rewrite rules
B. standard flow control
C. code-point aliases
D. priority flow control
E. explicit congestion notification