A.APCconnectedtoaswitchportviaanIPphoneisunawareofthepresenceofthephone
B.ThetrafficonthevoiceVLANmustbetaggedwith802.1pencapsulationinordertocoexistonthesameLANsegmentwithaPC
C.Toimprovethequalityofthevoicetraffic，nootherdevicesshouldbeattachedtotheIPphone
D.ThevoiceVLANmustbeconfiguredasanativeVLANontheswitch
E.APCconnectedtoaswitchportviaanIPphonemustsupportatrunkingencapsulation
正确答案：参考A
