A.probe request B.association request C.authentication request D.reassociation request
单项选择题WhatframetypeisusedtosignalTSPECreservationfromaclient?()
A.RSVP B.ADDTS C.802.11 association information elements D.WMM capabilities exchange
单项选择题Whichprotocolisusedbymulticasttopreventloops?()
A.OSPF B.RIP C.RPF D.BGP E.EIGRP