单项选择题
When using simultaneous voice and multicast on a single WLAN and RF band, what is the recommended DTIM value of the WLAN for VoWLAN devices?（）
A.DTIM = 1 B.DTIM = 2 C.DTIM = 3 D.DTIM = 4
单项选择题 WhatistheWMMuserpriorityofthepacketsgoingdownstreamtotheclientwhentheclientdoesnot supportTSPECbuttheCiscoWLChasACMenabledandWLANpriorityissettoPlatinum?（）
多项选择题 Whichthreeareinterframespacesdefinedin802.11?（）
单项选择题 WhatisthepayloadsizeofawirelessIPphoneinacallusingG.711codec?（）
