300-360 Question #118: Real Exam Question with Answer & Explanation

The correct answer is A: Enable coverage hole detection. If clients on a lightweight access point are detected at threshold levels (RSSI, failed client count, percentage of failed packets, and number of failed packets) lower than those specified in the RRM configuration, the access point sends a "coverage hole" alert to the controller.

Question

An engineer wants the controller to report when a client exceeds the minimum acceptable RSSI level, to ensure support for the minimum data rate required. Which controller option must be configured?

Options

AEnable coverage hole detection
BEnable the coverage optional mode.
CSet the DCA channel sensitivity to high.
DSet the coverage exception level per AP to 0.

Explanation

If clients on a lightweight access point are detected at threshold levels (RSSI, failed client count, percentage of failed packets, and number of failed packets) lower than those specified in the RRM configuration, the access point sends a "coverage hole" alert to the controller. The alert indicates the existence of an area where clients are continually experiencing poor signal coverage, without having a viable access point to which to roam. The controller discriminates between coverage holes that can and cannot be corrected. For coverage holes that can be corrected, the controller mitigates the coverage hole by increasing the transmit power level for that specific access point. The controller does not mitigate coverage holes caused by clients that are unable to increase their transmit power or are statically set to a power level because increasing their downstream transmit power might increase interference in the

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