11g的调制方式是什么？（）A.CCK DSSSB.OFDMC.CCK OFDMD.MIMO OFDM-找考题网

单项选择题InFrameRelay，FECNmessagesindicatingcongestionaresentorreceivedbywhichoffollowing？（）

A.Sentbythedestination
B.Receivedbythesender
C.Receivedbythedestination
D.Sentbythesender

单项选择题Inaframe，theMPLSlabelisimposed（）.

A.AftertheLayer3headerandbeforeLayer2header
B.AftertheLayer2headerandbeforeLayer3header
C.WithintheLayer3header
D.Beforethelayer2header

单项选择题BGPbestrouteselectionprocessisbasedonpathattributes.（）

A.True
B.False

单项选择题AnewBackupConnectionisbeingdeployedonaremotesiterouter.thestabilityoftheconnectionhasbeenaconcern.inordertoprovidemoreinformationtoEIGRPRegardingthisinterface，Youwishtoincorporatethe'Reliability'costmetricintheEIGRPCalculationwiththecommandmetricweights10101.WhatimpactwillthismodificationontheremotesiterouterhaveforotherexistingEIGRPneighborshipsfromthesameEIGRPDomain？（）A.ExistingNeighborswillimmediatelybeginusingthenewmetric.B.ExistingNeighborswillusethenewmetricafterclearingtheEIGRPNeighbors.C.ExistingNeighborswillresync，maintainingtheneighborrelationshipD.Allecistingneighborrelationshipswillgodown

A.thestabilityoftheconnectionhasbeenaconcern.inordertoprovidemoreinformationtoEIGRPRegardingthisinterface，Youwishtoincorporatethe'Reliability'costmetricintheEIGRPCalculationwiththecommandmetricweights10101.WhatimpactwillthismodificationontheremotesiterouterhaveforotherexistingEIGRPneighborshipsfromthesameEIGRPDomain？（）
A.ExistingNeighborswillimmediatelybeginusingthenewmetric.
B.ExistingNeighborswillusethenewmetricafterclearingtheEIGRPNeighbors.
C.ExistingNeighborswillresync，maintainingtheneighborrelationship
D.Allecistingneighborrelationshipswillgodown

单项选择题HowisRPFusedinmulticastrouting？（）

A.topreventmulticastpacketsfromlooping
B.topreventPIMpacketsfromlooping
C.toinstructPIMwheretosenda（*，G）or（S，G）joinmessage
D.topreventmulticastpacketsfromloopingandtoinstructPIMwheretosenda（*，G）or（S，G）joinmessage

单项选择题WhichstatementistrueaboutaSmurfattack？（）

A.Itsendspingrequestsinsegmentsofaninvalidsize
B.ItinterceptsthethirdstepinaTCPthree-wayhandshaketohijackasession
C.Itsendspingrequeststoasubnet，requestingthatdevicesonthatsubnetsendpingrepliestoatargetsystem
D.ItusesTrojanhorseapplicationstocreateadistributedcollectionof"zombie"computers，whichcanbeusedtolaunchacoordinatedDDoSattack

单项选择题ArouterhasbeenconfiguredwithanEIGRPvarianceof3.Whichofthefollowingstatementsistrue？（）

A.AnerrorwillresultbecausearoutercannotbeconfiguredwithanEIGRPvarianceof3becausethemaximumvariancenumberis2
B.Thesuccessorroutewillendupintheroutingtable，andsowillanyroutewithametricatmostthreetimesgreaterthanthevalueofthesuccessor’smetric
C.EIGRPwillonlyadvertiseroutesthatarewithinthreehopsofthecurrentrouter
D.Thesuccessorroutewillendupintheroutingtable，andsowillanyroutewithametricatleastonethirdthevalueofthesuccessor’smetric
E.Thebestthreerouteswithequalcostpathswillendupintheroutingtable
F.Thesuccessorroutewillbeanyroutewiththreetimesthevalueoftheadvertiseddistance

单项选择题WhichstatementaboutNPIVistrue？（）

A.NPIVprovidesameanstoassignmultipleFibreChannelIDstoasingleN-port.
B.NPIVcanbeenabledonaper-VSANbasis.
C.NPIVrequiresa"writeerase"andthenreloadtheswitchinordertocomeupintoNPIVmode.
D.NPIVisaCiscoproprietaryfeatureandassuchworksonlybetweentwoCiscoswitches.
E.NPIVmustnotbeenabledonaswitchthatisalsorunningN-portvirtualization.

单项选择题ACiscoswitchhasthisconfigurationforaport&e

A.

单项选择题720P分辨率品质的2D视频直播对网络带宽需求是( )

A.1Mbps
B.2Mbps
C.5Mbps
D.10Mbps