When a Vocera badge performs a broadcast call in a properly configured VoWLAN using WLC
v7.0, which two choices indicate how the QoS is marked? (Choose two.)

A.
Upstream marked as Best Effort.

B.
Upstream marked as ToS CS4.

C.
Upstream marked as DSCP EF.

D.
Downstream marked as DSCP EF.

E.
Downstream marked as Best Effort.

F.
Downstream marked as Silver.

Explanation: