A. AES
B. PSK
C. SSID
D. TKIP
E. WEP
第1题
A.aggregationcongestionoccurringatthecorelayerwherethedifferentdistributionlayerdevicesfeedtraffictothecore-layerswitches
B.speedmismatcheswhenmovingfromalow-speedLANenvironmenttoahigherspeedWANenvironment
C.flappingEthernetinterfacescausedbymisconfiguredLANinterfaces
D.flappingserialinterfacescausedbymisconfiguredWANinterfaces
E.speedmismatcheswhenmovingfromahigh-speedLANenvironmenttoalowerspeedWANenvironment
第2题
A.PPPoEcanprovideahostwithaccesstoadestinationoverEthernet.Youcanhaveonlyone PPPoE sessionperPVC
B.YoumustinstallPPPoEclientsoftwareonallhoststhatconnecttotheEthernetsegment.Thismeans thattheaccessprovidermustmaintainaCPE
C.YoucannotusePPPoEwithCiscoServiceSelectionGateway
D.PPPoEimplementationissusceptibletobroadcaststormsandpossibledenial-of-serviceattacks
E.Per-sessionaccountingispossible,whichallowstheserviceprovidertochargethesubscriberbased onsessiontimeforvariousservicesoffered.Theserviceprovidercanalsorequireaminimumaccess charge
第3题
A.alerts
B.critical
C.errors
D.notifications
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