What are four advantages that come from using auxiliary or voice VLANs in a Cisco Unified
Communications environment? (Choose four)
A.
Separates voice and data traffic
B.
Allows connectively between the voice and access VLANs
C.
Enables auto-registration
D.
Prevents unnecessary IP address renumbering
E.
Only a single physical port on the switch
F.
Simplifies QoS configuration