WhichfourstatementsaboutanIPservicelevelagreement(SLA)aretrue?() A.SLAresponderknowstypeofoperation，theportused，andduration.B.SLAresponderinsertsinandouttimestampsinthepacketpayload.C.SLAsenderandresponderusetheIPSLAControlProtocoltocommunicatewitheachotherbeforeD.SLAsenderandrespondercommunicationcanbeencrypted.E.SLAsenderandrespondercommunicationcanbeauthenticatedwithMD5.
WhichfourstatementsaboutanIPservicelevelagreement(SLA)aretrue?()
A.SLAresponderknowstypeofoperation，theportused，andduration.
B.SLAresponderinsertsinandouttimestampsinthepacketpayload.
C.SLAsenderandresponderusetheIPSLAControlProtocoltocommunicatewitheachotherbefore
D.SLAsenderandrespondercommunicationcanbeencrypted.
E.SLAsenderandrespondercommunicationcanbeauthenticatedwithMD5.
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