光纤分为单模光纤和多模光纤,这两种光纤的区别是()。
A.单模光纤的数据速率比多模光纤低
B.多模光纤比单模光纤传输距离更远
C.单模光纤比多模光纤的价格更便宜
D.多模光纤比单模光纤的纤芯直径粗
第1题
A.thetimerequiredfromreceiptoftheincomingframe,untiltheframe/packethasbeenqueuedfortransmission
B.thetimetakenforasinglepackettotraversethephysicalmediumfromoneendtotheother
C.thetimetakentoplaceaframeonthephysicalmediumfortransport
D.thetimespentforapackettoresideintheoutputqueueofarouter
第2题
A.best-effortdelivery
B.ingresscommittedrate(ICR)
C.shapingandpolicing
D.egresscommittedrate(ECR)
E.IntegratedServices(IntServ)
F.differentiatedservices(DiffServ)
第3题
A.AnIPaddressisneededoninterfaceseriall/2.
B.Theautodiscoveryqoscommandshouldbeconfiguredonthesubinterface
C.AgeneratedAutoOoSpolicyhasbeenappliedtoserial1/2.
D.Thecollectionofdatahasstopped.
第5题
A.ThePRIfieldshouldcontaintheCosvalueof010
B.ThePRIfieldshouldcontaintheCosvalueof011
C.ThePRIfieldshouldcontaintheCosvalueof100
D.ThePRIfieldshouldcontaintheCosvalueof101
E.ThePRIfieldshouldcontaintheCosvalueof110
F.ThePRIfieldshouldcontaintheCoSvalueof111
第6题
A.protectionagainstdenialofservice(DoS)attacksatinfrastructureroutersandswitches
B.protectionagainstknownwormattacksinroutersandswitches
C.qualityofservice(QoS)controlforpacketsthataresourcedfromthedataplaneofCiscoroutersandswitches
D.qualityofservicecontrol(QoS)forpacketsthataredestinedtothecontrolplaneofCiscoroutersandswitches
E.qualityofservice(QoS)controlforpacketsthataredestinedtothedataplaneofCiscoroutersandswitches
第7题
A.WLSEsupportscentralizedconfiguration.
B.WLSEsupportsdistributedconfiguration.
C.WLSEcanpickupstatisticsonadeviceevenifthedeviceisnotproperlyconfigured.
D.WLSEcanbeusedtoupgradethefirmwareonAPsandbridges.
E.WLSEmonitorsdevicefaultandperformanceconditionsbutcannotreportanypolicymisconfigurations
第8题
A.FXS
B.FSO
C.E&M
D.auxiliaryport
E.802.3afethernetports
第9题
A.FIFOqueuing,whichprovidesameanstoholdpacketswhiletheyarewaitingtoexitaninterface
B.Priorityqueuing,whichensuresafixedamountofbandwidth
C.Customqueuing(CO),whichprovidesaqueuingtoolthatservicesallqueues,evenduringtimesofcongestion
D.Bandwidthqueuing,whichensuresaminimumamountofbandwidth
E.Weightedfairqueuing(WFO),whichclassifiespacketsbasedonflows
第10题
A.WorldWideWebtrafficusingloadbalancedwebservers
B.voice
C.peertopeerapplicationsmissioncriticalapplications
D.peertopeerapplications
E.multicastroutingprotocols
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