TheCiscoAutoQoSfeatureisbeingusedthroughouttheCompanyVOIPnetwork.Whichthreestatementsaboutthisfeaturearetrue？（）

A.The"mlsqos"globalconfigurationcommandmustbeenteredbeforeconfiguringAutoQoS.
B.CEFmustbeenabled.
C.The"noautoqosvoip"commandisusedtodisableCiscoAutoQosandrevokeallconfigurationsgeneratedbyCiscoAutoQos.
D.CDPmustbeenabled.
E.SNMPmustbeenabled.

【参考答案】

B, C, D