Whichtrafficdescriptorisusedformarking?() A.weightedRED（WRED）orangeorgreenlabelsB.modularQoSCLI（MQC）applicationlayertagsC.DeficitRoundRobin（DRR）precedencebitsD.headercompressiontagsE.MPLSexperimentalbitsF.FIFOLayer2descriptorlabels（L2DL）
Whichtrafficdescriptorisusedformarking?()
A.weightedRED（WRED）orangeorgreenlabels
B.modularQoSCLI（MQC）applicationlayertags
C.DeficitRoundRobin（DRR）precedencebits
D.headercompressiontags
E.MPLSexperimentalbits
F.FIFOLayer2descriptorlabels（L2DL）