WhichtwoQoSclassificationandmarkingstatementsaretrue?()

A.InaFrameRelaynetwork,delaysensitivetrafficistaggedwiththediscardeligible(DE)bit. B.InanMPLSnetwork,thethreemostsignificantbitsoftheDSCPortheIPprecedenceoftheIPpacketarecopiedintotheMPLSEXPfield. C.InanMPLSnetwork,theMPLSEXPbitsareusedtoidentifyupto16CoSvalues. D.Thedifferentiatedservicescodepoint(DSCP)fieldconsistsofthefirstthreebitsoftheIPprecedencefieldintheheaderofanIPpacket. E.The802.1Qstandardusesathreebitfieldreferredtoastheuserprioritybits(PRI)tomarkpacketsasbelongingtoaspecificCoS.

时间:2023-12-20 11:30:04

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