在GDP统计中，住房服务的价值（住房被其所有者占据)是（)。A．并未计入，因为房地产服务并不认为是生产

A.ThetransmittedsignalfromtheAParrivesattheclientatslightlydifferenttimesresultinginphaseshifting

B.Multipathinterferencecanbesolvedbyusingdualantennas

C.Ifsignal2iscloseto360degreesoutofphasewithsignal1，theresultisessentiallyzerosignaloradeadspotintheWLAN

D.MultipathinterferenceislessofanissuewhenusingaDSSStechnologybecausemultipathisfrequencyselective

E.Ifsignal1isinphasewithsignal2，theresultisessentiallyzerosignaloradeadspotintheWLAN

F.Noneoftheotheralternativesapply

A.ThelightweightaccesspointwillsendLayer2andLayer3LightweightAccessPoint（LWAPP）modediscoveryrequestmessagesatthesametime

B.ThelightweightaccesspointwillsendLayer3LightweightAccessPoint（LWAPP）modediscoveryrequestmessagesonly

C.ThelightweightaccesspointwillsendLayer2LightweightAccessPoint（LWAPP）mode discoveryrequestmessages.Iftheattemptfails，theLAPwilltryLayer3LWAPPWLCdiscovery

D.ThelightweightaccesspointwillsendLayer2LightweightAccessPoint（LWAPP）modediscoveryrequestmessagesonly

A.SwitchoverensuresthatLayer2throughLayer4trafficisnotinterrupted

B.RedundancyrequiresBGP，OSPF，EIGRP，orIS-IS

C.RedundancyprovidesfastsupervisorswitchoverforallCiscoCatalyst6500seriesswitches

D.Switchovercanbecausedbyclocksynchronizationfailurebetweensupervisors

eprocessorredundancy（RPR+），theredundantsupervisorengineisfullyinitializedandconfigured，whichshortenstheswitchovertimeiftheactivesupervisorenginefails.WhichthreestatementsaretrueabouttheRPR+operationswhentheredundantsupervisorengineswitchedoverthefailedprimarysupervisorengine？（）

A.StaticIProutesaremaintainedacrossaswitchoverbecausetheyareconfiguredfromentriesintheconfigurationfile

B.Informationaboutdynamicroutingstates，maintainedontheactivesupervisorengine，issynchronizedtotheredundantsupervisorengineandistransferredduringtheswitchover

C.Informationaboutdynamicroutingstates，maintainedontheactivesupervisorengine，isnotsynchronizedtotheredundantsupervisorengineandislostonswitchover

D.TheForwardingInformationBase（FIB）tablesareclearedonaswitchover.Asaresult，routedtrafficisinterrupteduntilroutetablesreconverge

E.StaticIProutesareclearedacrossaswitchoverandrecreatedfromentriesintheconfigurationfileontheredundantsupervisorengine

F.TheForwardingInformationBase（FIB）tablesaremaintainedduringtheswitchover.Asaresult，routedtrafficcontinueswithoutanyinterruptionwhenthefailoveroccurs

A.privateVLANs

B.portsecurity

C.BPDUguard

D.dynamicARPinspection

E.DHCPsnooping

A.Trunk

B.Isolated

C.Primary

D.Community

E.Promiscuous

F.Noneoftheotheralternativesapply

mtheDHCPserverwhentheworkstationboots.Olderworkstationsfunctionnormally，andthenewworkstationobtainsanaddresswhenmanuallyforcedtorenewitsaddress.WhatshouldbeconfiguredontheswitchtoallowtheworkstationtoobtainanIPaddressatboot？（）

A.UplinkFastontheswitchportconnectedtotheserver

B.BackboneFastontheswitchportconnectedtotheserver

C.PortFastontheswitchportconnectedtotheworkstation

D.trunkingontheswitch

A.PortsinVLAN5

B.Utilization

C.VLANinformationonport0/5

D.Filters

E.MTUandtype

A.showspantreebackbonefast

B.showspantreestatistics

C.showspantreeuplinkfast

D.showspantreeblockedports

E.showspantreeportstate

F.showspantreeportvlancost

Thenetworkisdisplayedinthediagrambelow：

YouusethefollowinginformationforswitchSWA：

PortModeEncapsulationStatusNativeVLAN

fa0/1desirablen-802.1qtrunking5

PortVLANsisallowedontrunk

fa0/11-100，102-1005

PortVLANsisownedandactiveinmanagementdomain

fa0/11-6.8-100，102-115，197-999，1002-1005

PortVLANsinspanningtreeforwardingstateandnotpruned

fa0/11-6，8-100，102-105，108-999，1002-1005

SWusersinVLAN107complainthattheyareunabletogainaccesstotheresourcesthroughtheSW1router.

Whatisthecauseofthisproblem？（）