Whatarethreebenefitsofclassofservice?（）
A. Itcanmakeaslownetworkfaster.
B. Itcanprioritizelatency-sensitivetraffic.
C. Itcaneliminatecongestion.
D. Itcancontrolcongestion.
E. Itcanallocatebandwidthfordifferentclassesoftraffic.
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WhentroubleshootingapossiblemisconfigurationbetweentheLACandLNS,whataretwotoolsusedtocomparethem?（）(Choosetwo.)
A. showaaa-domainmapontheLAC
B. showaaa-domainmapontheLNS
C. showl2tpdestinationprofileontheLAC
D. showl2tpdestinationprofileontheLNS
Randomearlydetection(RED)isassociatedwithwhichclassofservicecomponent?（）
A. classification
B. policing
C. queuing
D. scheduling
信息具有如下哪些属性？（）
A. 客观性
B. 价值性
C. 等级性
D. 可分享性
E. 可再生性
Whichclass-of-servicecomponentallowsyoutodefinethebandwidthallocatedtodifferenttraffictypes?（）
A. classification
B. rewritemarking
C. scheduling
D. queuing
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