单项选择题 WhichexplanationdescribesawirelessclientIGMPmulticastjoinrequestusingaCiscoUnified WirelessNetworkv5.2architectureofAPtoWLANcontroller?（）
单项选择题 WhatisthepurposeoftheWLCController->Multicast->IGMPTimeoutfeatureoperatingonv5.2?（）
单项选择题 WhichinformationelementwilltheclientuseiftheclientintendstouseadifferentPHYratethanthe nominalPHYrateadvertised?（）