Refer to the Exhibit.

Referring to the exhibit, you have been asked to troubleshoot a class of service (CoS) problem
where an interface is dropping some expedited-forwarding (EF) packets during congestion.
Which two statements describe what is happening? (Choose two.)

A.
EF packets are dropped because the exp-default classifier maps EF packets to queue 1.

B.
EF packets are dropped because the ipprec-compatibility classifier maps EF packets to queue
1.

C.
The default CoS input scheduler is in use.

D.
The default CoS output scheduler is in use.

Explanation: