The wireless team must configure a new voice SSID for optimized roaming across multiple WLCs with Cisco 8821 phones. Which two WLC settings accomplish this goal? (Choose two.)
A.
Configure AVC profiles on the SSID.
B.
Configure mobility groups between WLCs.
C.
Use AVC to tag traffic voice traffic as best effort.
D.
Configure AP groups between WLCs.
E.
Use Cisco Centralized Key Management for authentication.
Answer: BE
Cisco 8821 phones are clients that support CCKM.
CCKM caches clients' PMK for 1 hour (good for voice calls) and works inter-controller, but this require that the WLCs know each other: Mobility Group
best effort is the QoS default setting, you should not combine sensible traffic like video and audio with the normal traffic. C is not an answer for me. Answer B and E for me. correct
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