Which statement about Link Aggregation when implemented on a Cisco Wireless LAN Controller is true?

Which statement about Link Aggregation when implemented on a Cisco Wireless LAN Controller is true?
A . To pass client traffic two or more ports must be configured
B . The EtherChannel must be configured in “mode active”
C . When enabled, the WLC bandwidth drops to 500 Mbps
D . One functional physical port is needed to pass client traffic

View Answer

Answer: D

Explanation:

Link aggregation (LAG) is a partial implementation of the 802.3ad port aggregation standard. It bundles all of the controller’s distribution system ports into a single 802.3ad port channel.

Restriction for Link aggregation:

C LAG requires the EtherChannel to be configured for `mode on’ on both the controller and the Catalyst switch -> Answer B is not correct.

C If the recommended load-balancing method cannot be configured on the Catalyst switch, then configure the LAG connection as a single member link or disable LAG on the controller -> Answer A is not correct

while answer D is correct.