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单项选择题

YourSPFILEcontainsthefollowingparametersettings：SGA_TAR……

YourSPFILEcontainsthefollowingparametersettings：
SGA_TARGET=8G
DB_CACHE_SIZE=4G
SHARED_POOL_SIZE=2G
LARGE_POOL_SIZE=512M
JAVA_POOL_SIZE=512M
LOG_BUFFER=100M
SGA_MAX_SIZE=10G
YouquerytheV$SGA_DYNAMIC_COMPONENTSdynamicperformanceviewanddiscoverthatthelargepoolcomponentiscurrentlysizedat1G.YouwantthevalueoftheSGA_TARGETinitializationparameterto10G，butinsteadofspecifyingavalueof10GfortheSGA_TARGETinitializationparameter，youerroneouslyexecutethefollowingstatement：
SQL>ALTERSYSTEMSETSGA_TARGET=0SCOPE=BOTH；
Whatistheresultofthisstatement？（）

A.YouwantthevalueoftheSGA_TARGETinitializationparameterto10G，butinsteadofspecifyingavalueof10GfortheSGA_TARGETinitializationparameter，youerroneouslyexecutethefollowingstatement：

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热门试题

单项选择题WhatwillbetheendresultofthissetofRMANcommands？（）shutdownabortstartupmountrestoredatafile4untiltime，，09／30／2008：15：00：00；recoverdatafile4untiltime，，09／29／2008：15：00：00；alterdatabaseopenresetlogs；

A.Datafile4willberecovereduntil9/30/2008at15：00andthedatabasewillopen.
B.Therestorecommandwillfail.
C.Therecovercommandwillfail.
D.Thealterdatabaseopenresetlogscommandwillfail.
E.Allthesecommandswillfailbecausetheymustbeintheconfinesofarunblock.

单项选择题Considertherecoverystepsineachofthecases&e

A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
K.
L.
M.

单项选择题专线业务不包括()

A.传输电路出租
B.互联网专线
C.语音专线
D.集团短信

单项选择题11g的调制方式是什么？（）

A.CCK/DSSS
B.OFDM
C.CCK/OFDM
D.MIMO/OFDM

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.（）

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

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

单项选择题Whichdefinitionbestdescribestheimplementationservicecomponentwithintheimplementphase？Selectexactly1answer（s）fromthefollowing：（）。

A.providingastep-by-stepplanthatdetailstheinstallationandservice-commissiontasksrequiredinordertocreateacontrolled-implementationenvironmentthatemulatesacustomernetwork
B.assessingtheabilityofsitefacilitiestoaccommodateproposedinfrastructurechanges
C.developingandexecutingproof-of-concepttests，validatinghigh-levelinfrastructuredesign，andidentifyinganydesignenhancements
D.installing，configuring，andintegratingsystemscomponentsbasedonanimplementationplandevelopedinearlierphases
E.improvingacustomer’sinfrastructuresecuritysystem