单项选择题
A.duplicate IP address
B.code upgrade in progress
C.normal operation
D.searching for primary controller
单项选择题 WhenconfiguringQoSonawirelesscontroller，theper-user，real-timebandwidthcontractisenforcedfor whichofthefollowingprotocols？（）
单项选择题 HowmanyRADIUSserverscanbeaddedtoacontrollerandthereafterassignedtotheauthenticationor accountingofindividualWLANIDs？（）
单项选择题 WhenconfiguringCiscoSecureACStosupportwirelessEAPauthentication，whichdevicemustbeconfiguredasaAAAclient？（）