The customer has an existing 802.11b/g network with Cisco 2500 controllers. The customer would like to migrate to an 802.11a/b/g/n WLAN. Which network infrastructure issue might impact client performance in this proposed controller-based solution?
A. The additional application load placed on servers by 802.11n clients.
B. A bottleneck may occur if the access switch port to the AP only supports 100 Mb/s full duplex.
C. The additional load placed on a RADIUS server by 802.1X authentication traffic on the first work day of each week.
D. The added delay WDS imposes on the client when they roam from one AP to another.
