Which infrastructure issue needs to be verified and potentially resolved before deploying a centralized 802.11n WLAN?

A.
That all the access layer switches that the 802.11n APs will connect to support 802.3af power.

B.
That all the access layer switches that the 802.11n APs will connect to contain 10/100/1000 Ethernet ports.

C.
The location of application and authentication servers.

D.
The proposed location for the WDS server.

E.
The proposed location for the WCS.

Explanation:

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