Refer to the exhibit. 
You are testing coverage-hole detection in your lab. You are using the default Cisco WLC
coverage-hole detection configuration that is shown. You have 14 test clients, all associated to the
same AP. You move three of the clients far away from the AP so that they have an RSSI of -85
dBm or lower for 1 minute. To your surprise, you see precoverage-hole alarms, but no coveragehole alarm is triggered.
Which two scenarios explain this issue? (Choose two.)
A.
The failed clients must be at an RSSI of -81 dBm or lower for at least 90 seconds.
B.
The failed clients must be at an RSSI of -80 dBm or lower for at least 90 seconds.
C.
The number of failed clients is less than 25 percent of the total number of clients that are
associated to the AP.
D.
This Cisco WLC is not an RF group leader and so cannot make a coverage-hole decision.
E.
Coverage-hole alarms are generated based on the number and percentage of failed packets
from the client, rather than on thresholds.