A.FIFOqueuing，whichprovidesameanstoholdpacketswhiletheyarewaitingtoexitaninterface
B.Priorityqueuing，whichensuresafixedamountofbandwidth
C.Customqueuing（CQ），whichprovidesaqueuingtoolthatservicesallqueues，evenduringtimesofcongestion
D.Bandwidthqueuing，whichensuresaminimumamountofbandwidth
E.Weightedfairqueuing（WFQ），whichclassifiespacketsbasedonflows
正确答案：参考B, D
