A customer has recently implemented a new wireless infrastructure using WLC -5520S at a site directly next to a large commercial airport Users report that they intermittently lose Wi-Fi connectivity, and troubleshooting reveals it is due to frequent channel changes.
Which two actions fix this issue? (Choose two)
A . Remove UNII-2 and Extended UNII-2 channels from the 5 GHz channel list
B . Restore the DCA default settings because this automatically avoids channel interference
C . Disable DFS channels to prevent interference with Doppler radar
D . Enable DFS channels because they are immune to radar interference
E . Configure channels on the UNII-2 and the Extended UNII-2 sub-bands of the 5 GHz band only
Answer: A C
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