A.aggregationcongestionoccurringatthecorelayerwherethedifferentdistributionlayerdevicesfeedtraffictothecore-layerswitches
B.speedmismatcheswhenmovingfromalow-speedLANenvironmenttoahigherspeedWANenvironment
C.flappingEthernetinterfacescausedbymisconfiguredLANinterfaces
D.flappingserialinterfacescausedbymisconfiguredWANinterfaces
E.speedmismatcheswhenmovingfromahigh-speedLANenvironmenttoalowerspeedWANenvironment
第1题
A.PPPoEcanprovideahostwithaccesstoadestinationoverEthernet.Youcanhaveonlyone PPPoE sessionperPVC
B.YoumustinstallPPPoEclientsoftwareonallhoststhatconnecttotheEthernetsegment.Thismeans thattheaccessprovidermustmaintainaCPE
C.YoucannotusePPPoEwithCiscoServiceSelectionGateway
D.PPPoEimplementationissusceptibletobroadcaststormsandpossibledenial-of-serviceattacks
E.Per-sessionaccountingispossible,whichallowstheserviceprovidertochargethesubscriberbased onsessiontimeforvariousservicesoffered.Theserviceprovidercanalsorequireaminimumaccess charge
第2题
A.alerts
B.critical
C.errors
D.notifications
第4题
A.fortrailtraceidentification
B.asthebackwarddefectindicator
C.totransmitinformationbetweenOTUterminationpoints
D.toextendcommandandmanagementfunctionsoverseveralframes
E.Generalcommunicationchannels1and2(GCC1/GCC2)donotbelongtoOTUOH
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