What is the Cisco recommended configuration for a Cisco switch port connected to an AP in local mode for optimal voice over WLAN performance with an 8821 wireless phone?

What is the Cisco recommended configuration for a Cisco switch port connected to an AP in local mode for optimal voice over WLAN performance with an 8821 wireless phone?
A . switchport encapsulation dot1q
switchport mode trunk
mls qos trust device cisco-phone
B. switchport mode access
mls qos trust device cisco-phone
C. switchport mode access mls qos trust cos
D. switchport mode access mls qos trust dscp

View Answer

Answer: D

Explanation:

Reference: https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/cuipph/8821/english/Deployment/8821_wlandg.pdf