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.
Refer:
Note: The Badge broadcast is sent by the Badge at DSCP EF; when the multicast comes back to the group from the WLC, it is marked best effort. This is a function of the WLC and can have an effect on voice quality.
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Mobility/vowlan/41dg/vowlan41dg-book/vowlan_ch11.html