EMC-信息存儲(chǔ)于管理考試-第二版-2014年1月題庫(kù)

EMC信息存儲(chǔ)于管理考試第二版2014年1月最新題庫(kù)耗時(shí)50個(gè)小時(shí)重新整理版–覆蓋全部試題EMCE10-001InformationStorageandManagementExamVersion2ExamAQUESTION1Whichcachemanagementalgorithmisbasedontheassumptionthatdatawillnotberequestedbythehostwhenithasnotbeenaccessedforawhile?A.LRU(LRU是LeastRecentlyUsed近期最少使用算法)B.HWMC.LWMD.MRUCorrectAnswer:AQUESTION2[?]WhatdoestheareaIDoftheFCaddressidentify?A.GroupofportswithinaswitchB.AnindividualportwithinafabricC.LocationofthenameserverwithinthefabricD.UniquenumberprovidedtoeachswitchinthefabricCorrectAnswer:AQUESTION3Anorganizationperformscopyonfirstaccess(CoFA)replicationtocreatealocalreplicaofapplicationdata.Toperformasuccessfulrestore,whatshouldbeconsidered?A.SourcedevicesmustbehealthyB.SavelocationsizemustbelargerthanthesizeofallsourcedevicesC.SavelocationsizemustbeequaltothesizeofallsourcedevicesD.AllchangestothesourceandreplicamustbediscardedbeforetherestorestartsCorrectAnswer:AQUESTION4WhichhostcomponenteliminatestheneedtodeployseparateadaptersforFCandEthernetcommunications?A.ConvergednetworkadapterB.TCPOffloadEngineNICC.FCIPbridgingadapterD.iSCSIhostbusadapterCorrectAnswer:AQUESTION5Whatisafunctionofunifiedmanagementsoftwareincloudcomputing?A.DefiningcloudserviceattributesB.ConsolidatinginfrastructureresourcesscatteredacrossoneormoredatacentersC.MeteringbasedonusageofresourcesbytheconsumerD.ProvidinganinterfacetoconsumerstorequestcloudservicesCorrectAnswer:AQUESTION6WhichEMCproductprovidesthecapabilitytorecoverdatauptoanypoint-in-time?A.RecoverPointB.NetWorkerC.AvamarD.DataDomainCorrectAnswer:AQUESTION7Whatisneededtoperformanon-disruptivemigrationofvirtualmachines(VMs)betweenhypervisors?A.HypervisorsmusthaveaccesstothesamestoragevolumeB.PhysicalmachinesrunninghypervisorsmusthavethesameconfigurationC.HypervisorsmustberunningwithinthesamephysicalmachineD.BothhypervisorsmusthavethesameIPaddressCorrectAnswer:AQUESTION8WhichiSCSInamerequiresanorganizationtoownaregistereddomainname?A.IQN(iSCSIQualifiedName)B.EUIC.WWNND.WWPNCorrectAnswer:AQUESTION9Whichdatacenterrequirementreferstoapplyingmechanismsthatensuredataisstoredandretrievedasitwasreceived?A.Integrity(完整)B.AvailabilityC.SecurityD.PerformanceCorrectAnswer:AQUESTION10Whatdescribesalandingzoneinadiskdrive?A.Areaonwhichtheread/writeheadrestsB.Areawheretheread/writeheadlandstoaccessdataC.AreawherethedataisbufferedbeforewritingtoplattersD.Areawheresector-specificinformationisstoredonthediskCorrectAnswer:AQUESTION11Whatisacharacteristicofunifiedstorage?A.SupportsmultipleprotocolsfordataaccessandmanagedthroughasinglemanagementinterfaceB.SupportsacommonprotocolfordataaccessandmanagedthroughaunifiedmanagementinterfaceC.Providescompute,storage,andnetworkvirtualizationproductsinonesolutionD.StoresalldataintheformofobjectsandmanagedthroughaunifiedmanagementinterfaceCorrectAnswer:AQUESTION12Whatdefinesthetimetakentopositiontheread/writeheadacrosstheplatterwitharadialmovementinadiskdrive?A.SeektimeB.RotationallatencyC.DatatransfertimeD.ServicetimeCorrectAnswer:AQUESTION13Whatisabenefitofcloudcomputingovertraditionalcomputing?A.ReducesthetimetoprovisionanddeploynewapplicationsB.Eliminatesconsumer'sIToperationalexpenditureC.EnablestheuseofproprietaryAPIstoaccessITresourcesD.Lowersmigrationcostandpreventsvendorlock-inCorrectAnswer:AQUESTION14Whichstatementdescribesadenialofserviceattack?A.PreventsauthorizedusersfromaccessingtheresourcesandservicesB.ProhibitsattemptstorepairtheresourcesandservicesafteranattackC.Attemptstoprovidefalseinformationbyimpersonatingsomeone'sidentityD.PreventsunauthorizeduserstoaccesstheresourcesandservicesCorrectAnswer:AQUESTION15Whatisakeybenefitofvirtualization?A.ImprovedresourceutilizationB.ImprovedperformanceC.EnhancedinteroperabilityD.UnlimitedresourcescalingCorrectAnswer:AQUESTION16[?]WhatisanaccuratestatementabouttheDataCenterBridgingExchangeprotocol?A.EnablesConvergedEnhancedEthernet(CEE)devicestoconveyandconfiguretheirfeatureswithotherCEEdevicesB.CreatesvirtualFCoElinksoveranexistingEthernetnetworktotransportFCframesovervirtuallinksindependentlyC.EnablesanFCoEswitchtosendsignalstootherFCoEswitchesthatneedtostoporslowdowntheirtransmissionsD.EnablesanFCoEswitchtotransportbothTCP/IPandFCframesoverasinglevirtualFCoElinkCorrectAnswer:AQUESTION17WhatisakeysecurityconsiderationwhenaNASdeviceenablessharingofthesamedataamongUNIXandMicrosoftWindowsusers?A.NASdevicemustmapUNIXpermissionstoWindowsandviceversaB.NASdefinesandmaintainsownershiptotheobjectsC.NISservermustseparatelymaintainSIDsforUNIXandWindowsenvironmentsD.ObjectpermissionsarenotdefinedinadvanceandassigneddynamicallyCorrectAnswer:AQUESTION18[?]Whichcloudcomputingcharacteristicenablesconsumerstogrowandshrinkthedemandforresourcesdynamically?A.Rapidelasticity[彈性]B.ResourcepoolingC.MeasuredserviceD.On-demandself-serviceCorrectAnswer:AQUESTION19WhichoperationisperformedwhilecreatingaVMsnapshot?A.CreateadeltafiletorecordchangestothevirtualdisksincethesessionisactivatedB.CapturetheconfigurationdataofaVMtocreateanidenticalcopyoftheVMC.CreateajournalvolumetoupdatechangestothesnapshotD.Createa"Gold"copyofthesnapshotbeforecopyingchangestothevirtualdiskCorrectAnswer:AQUESTION20[?]Whichcloudcomputingcapabilityenablesmonitoringandreportingresourceusage?A.MeteringB.PoolingC.Self-servicerequestingD.PublishingCorrectAnswer:AQUESTION21InthecontextofprotectingtheFCSANinfrastructure,whatisanexampleofinfrastructureintegrity?A.PreventingnodelogintothefabricwithoutproperauthorizationB.ImplementingiSNSdiscoverydomainsC.ImplementinganFSPFalgorithmtocreateavirtualSAND.NotpermittingphysicalsegmentationofnodesCorrectAnswer:AQUESTION22Whatistrueaboutparity-basedRAID?A.ParityisupdatedeachtimeawriteisperformedB.ParityisreadeachtimeareadisperformedC.ParityisupdatedonlywhenwritesfillastripeD.ParityisupdatedeachtimewhenbothreadsandwritesareperformedCorrectAnswer:AQUESTION23WhatisanaccuratestatementaboutagatewayNASsolution?A.NASheadandstoragearemanagedindependentlyB.Consolidatesfile-levelandblock-levelaccessonasinglestorageplatformC.ProvidesintegratedmanagementforbothNASheadandstorageD.CreatesasinglefilesystemthatrunsonallNASheadsCorrectAnswer:AQUESTION24WhatispreventedusingRAIDtechnology?A.DatalossB.HostBusAdapterfailuresC.SecuritybreachD.SwitchfailureCorrectAnswer:ARAIDisanacronymthatstandsforRedundantArrayofInexpensiveDisksorRedundantArrayofIndependentDisks.RAIDisatermusedincomputing.WithRAID,severalharddisksaremadeintoonelogicaldisk.Therearedifferentwaysthiscanbedone.Eachofthemethodsthatputstheharddiskstogetherhassomebenefitsanddrawbacksoverusingthedrivesassingledisks,independentofeachother.ThemainreasonswhyRAIDisusedare:QUESTION25[?]Whichprocessminimizestheexposuretoalossofuncommittedcacheddatawhenthereisapowerfailure?A.Cachevaulting[結(jié)構(gòu)]B.CachemirroringC.LowwatermarkingD.PrefetchingCorrectAnswer:AQUESTION26Whatarethethreeelementsoftherisktriadfromaninformationsecurityperspective?A.Assets,threats,andvulnerabilitiesB.Actions,threats,andvulnerabilitiesC.Assets,threats,andcountermeasuresD.Assets,countermeasures,andvulnerabilitiesCorrectAnswer:AQUESTION27[?]Whichcloudcomputingcharacteristicenablesconsumerstorequestresourcesusingaservicecatalogthroughaweb-baseduserinterface?A.On-demandself-serviceB.BroadnetworkaccessC.MeteredservicesD.CatalogmanagementCorrectAnswer:AQUESTION28[?]WhatisapurposefordistributingSwitchRegisteredStateChangeNotifications(SW-RSCNs)inafabric?A.Updatesthenameserveronallswitchesinthefabric[RSCN]B.StopsorslowsdowntransmissionsfromotherswitchesinthefabricC.DistributesconfigurationvaluesandcongestionnotificationsacrossthefabricD.ExchangesrequestsforchangenotificationsamongdistributedmanagementserversCorrectAnswer:AQUESTION29IntheFibreChannelprotocol,whatarefunctionsoftheFC-1layer?A.EncodinganddecodingB.RoutingandflowcontrolC.InterfacemappingandflowcontrolD.TransmissionofrawbitsandencodingCorrectAnswer:AQUESTION30WhatisasecurityimplementationinNASenvironments?A.KerberosB.PortbindingC.S_IDLockdownD.FC-SPCorrectAnswer:AQUESTION31InanFCSANenvironment,whatisabenefitofzoning?A.RestrictsRSCNtraffic[RSCN]B.IsolatesfabricservicesC.EnablesonlinevolumeexpansionD.Providesnon-disruptivedatamigrationCorrectAnswer:AQUESTION32[?]WhatistheRAID5writepenalty[寫(xiě)懲罰]forrandom,smallwriteI/Os?A.1B.2C.4D.6CorrectAnswer:CQUESTION33WhichEMCblock-levelstoragevirtualizationproductenableshostsfromtwodifferentdatacenterstoaccessasinglecopyofdata?A.VPLEXB.VMAXC.VNXD.VblockCorrectAnswer:AQUESTION34WhichEMCproductenablesVNXarray-basedremotereplicationfromaprimaryvolumetoasecondaryvolumeresidingonadifferentVNXstoragesystem?A.MirrorViewB.SnapViewC.RepliStorD.SRDFCorrectAnswer:AQUESTION35Acustomerhasarequirementtoperformabackupeachnight.However,thecustomerhasalimitedamountoftimeforbackupstorunonweeknights,MondaythroughFridayevenings.Whichbackupgranularitytypeisrecommendedtomeetthebackupwindowforthosenights?A.IncrementalB.CumulativeC.FullD.DifferentialCorrectAnswer:AQUESTION36Whatisacharacteristicofascale-outNAS?A.FilesystemgrowsdynamicallyasnodesareaddedintheclusterB.UptofourfilesystemscanbecreatedacrosstheclusterC.DistinctfilesystemsarecreatedoneachnodeintheclusterD.DifferentfilesystemscanbemixedoneachnodeinasingleclusterCorrectAnswer:AQUESTION37[?]InaMicrosoftWindowsfilesharingenvironment,whatisafunctionofsystemaccesscontrollists(SACL)?A.Determinesobjectaccessinformationthatneedstobeaudited[SACL]B.ProvidesinformationonsystemaccesstroubleshootingC.Uniquelyidentifiesobjects,users,andusergroupsD.ProvidespathnametoaccessbothinboundandoutboundtrafficCorrectAnswer:AQUESTION38Whatisanadvantageofsynchronousremotereplicationcomparedtootherremotereplicationmethods?A.NearzeroRPOB.NearzeroRTOC.NodistancelimitationD.FasterresponsetimeCorrectAnswer:AQUESTION39Whatisanadvantageofsub-LUNtiering?A.ImprovedperformanceB.EnhancedreliabilityandavailabilityC.DynamicexpansionofstoragecapacityD.FasterprovisioningofthinLUNsCorrectAnswer:AQUESTION40[?]WhichfabricserviceisresponsibleformanaginganddistributingRegisteredStateChangeNotifications(RSCNs)toattachednodeports?A.Fabriccontroller[RSCNs]B.NameserverC.FabricloginserverD.ManagementserverCorrectAnswer:AQUESTION41[?]WhichSANsecuritymechanism[方法]willpreventaswitchportfrombeingenabledevenafteraswitchreboot?A.PersistentPortDisable[PPD]B.PortBindingC.PortLockdownD.PersistentSwitchDisableCorrectAnswer:AQUESTION42[?]Whatdoesablockmapcontaininafilesystemsnapshot?A.AddressfromwhichdataistobereadwhenaccessingthesnapshotB.OriginaldatawhenawriteisissuedtothetargetforthefirsttimeC.BlocksthathavechangedsincethecreationofthesnapshotD.BlocksthathavebeenmodifiedineitherthesourceorthetargetCorrectAnswer:AQUESTION43Whatdescribesafullmeshtopology?A.AllswitchesaredirectlyconnectedtoeachotherB.ConsistsofcoreandedgeswitchtiersC.RequiresfourswitchesD.RequirestwoISLhopsforhosttostoragetrafficCorrectAnswer:AQUESTION44[?]Whatisacharacteristicofpointer-basedvirtualreplication?A.ReplicaisimmediatelyavailableafteractivationofareplicationsessionB.ReplicadeviceisatleastaslargeasthesourcedeviceC.ReplicaisavailableonlyafterdetachmentfromthesourceD.SourcedoesnotneedtobehealthyfortherestoreCorrectAnswer:AQUESTION45[?]Whenusingtheimage-basedbackupapproachtobackupavirtualmachine,wheredoesthebackupclientrun?A.ProxyserverB.HypervisorC.VirtualmachineD.BackupdeviceCorrectAnswer:AQUESTION46WhichNASimplementationconsolidatesfile-basedandblock-basedaccessonasinglestorageplatform?A.UnifiedB.Scale-outC.GatewayD.IntegratedCorrectAnswer:AQUESTION47Whichdatadeduplicationmethodincreasesthechanceofidentifyingduplicatedataevenwhenthereisonlyaminordifferencebetweentwodocuments?A.Variable-lengthsegmentB.Single-instanceC.FilelevelD.Fixed-blockCorrectAnswer:AQUESTION48[?]WhichoperationisperformedbyanFCoEswitchwhenitreceivesaframewithanFCoEEthertype?A.SwitchrecognizesthattheframecontainsanFCpayloadandforwardsittotheFCForwarderB.SwitchrecognizestheframeasEthernetandforwardsittotheEthernetbridgeC.SwitchrecognizestheframeasFCoEandforwardsittotheEthernetbridgeD.SwitchrecognizesthattheframecontainsanEthernetpayloadandforwardsittotheFCForwarderCorrectAnswer:AQUESTION49Whatisakeyadvantageofdatastripingacrossmultipledisksascomparedtoasingledisk?A.PerformanceB.SpaceutilizationC.ProtectionD.CapacityCorrectAnswer:AQUESTION50WhichEMCproductisadisk-basedbackupandrecoverysolutionandprovidessource-baseddatadeduplication?A.AvamarB.DataDomainC.NetWorkerD.SourceOneCorrectAnswer:AQUESTION51Clickonthecalculatoriconintheupperleftcorner.[?]Whenaserviceisdescribedas"three9savailable",whatistheapproximateamountofdowntimeallowedperweek?A.10secondsB.10minutesC.10hoursD.10daysCorrectAnswer:BQUESTION52[?]Clickonthecalculatoriconintheupperleftcorner.Acustomer'sapplicationusesfive,10GBdevices.Afullvolumelocalreplicaoftheapplicationisrequiredevery4hours.Thecustomerrequireseachreplicatobekeptfor24hours.Inthissituation,howmanyreplicadevicesarerequired?A.5B.20C.30D.50CorrectAnswer:CQUESTION53[?]WhatisacharacteristicofanFC-SWimplementation?A.Providesadedicated[專(zhuān)用]pathbetweennodesB.NodesarbitratetogaincontrolofthedatapathtotransferdataC.OnlyonenodecanperformanI/OoperationatatimeD.Supportsupto126nodesCorrectAnswer:AQUESTION54Whichfunctionalityisofferedbyuseraccessmanagementsoftware?A.ProvidesauserinterfacetobrowsetheservicecatalogandrequestcloudservicesB.EnablesausertocreateVMsandallocatethemtoCPU,memory,andstoragecapacity C.Providesauserinterfacetoviewaconsolidatedviewofexistingphysicalandvirtualinfrastructuresacrossdatacenters D.Allowsausertomonitorperformance,capacity,andavailabilityofphysicalandvirtualresourcescentrallyCorrectAnswer:AQUESTION55Whatarethekeycomponentsofanintelligentstoragesystem?A.Front-end,cache,back-end,andphysicaldisksB.Host,connectivity,back-end,andstoragearrayC.Switch,ports,back-end,andphysicaldisksD.Host,LUNs,cache,andphysicaldisksCorrectAnswer:AQUESTION56[?]Acustomerrequiresadditionalstoragecapacity.Thestorageexpansionmustbefastandperformanceisnotaconstraint.WhatisthemostappropriateLUNexpansionmethod?A.Concatenated[成串地]metaLUNB.StripedmetaLUNC.BaseLUND.ComponentLUNCorrectAnswer:AQUESTION57WhichiSCSIdiscoverymechanismrequiresmanualconfigurationoftheinitiatorwiththetarget'snetworkportal?A.SendTargetsdiscoveryB.iSCSIservicelocationdiscoveryC.InternetStorageNameServiceD.iSCSIdomainnamediscoveryCorrectAnswer:AQUESTION58Whatisacharacteristicofasynchronousremotereplication?A.OnlythelastupdateistransmittediftherearemultiplewritestothesamelocationinthebufferB.WritesarecommittedtothetargetbeforebeingcommittedtothesourceC.ReadsarealwaysservicedfromthetargetreplicaD.Distancebetweenthetwositesisrestrictedtolessthan200kmCorrectAnswer:AQUESTION59WhatisacharacteristicofBigData?A.StructuredandunstructureddatageneratedbymultiplesourcesB.StructureddatageneratedbyasinglesourceC.OnlyunstructureddatageneratedbymultiplesourcesD.StructuredandunstructureddatageneratedbyasinglesourceCorrectAnswer:AQUESTION60Clickonthecalculatoriconintheupperleftcorner.[?]Astripedepthof64KBhasbeenassignedtoafive-diskRAID0set.Whatisthestripesize?A.64KBB.128KBC.256KBD.320KB[5diskwithR0=64k*5=320K]CorrectAnswer:DQUESTION61AusertriestoupdatethecontentofafilestoredonaCASsystem.Whatistheresultofthisoperation?A.CASgeneratesanewaddressforthealteredcontentandstoresitasanewobjectB.CASusesthesamecontentaddressforthealteredcontentandtheoriginalcontentC.CASoverwritestheoriginalcontentandgeneratesanewcontentaddressD.CASoverwritestheoriginalcontentbutthecontentaddressispreservedCorrectAnswer:AQUESTION62WhichEMCproductprovidestarget-baseddeduplication?A.DataDomainB.AvamarC.NetWorkerD.RecoverPointCorrectAnswer:AQUESTION63Whatarethetwomechanismsthatcanbeemployedtoaddressthreatsofuseridentityspoofing?A.Userauthentication[認(rèn)證]anduserauthorization[授權(quán)]B.AccessControlLists(ACLs)andaccesscontroltostorageobjectsC.AccesscontroltostorageobjectsandauditingD.UserauthenticationandInformationRightsManagement(IRM)CorrectAnswer:AQUESTION64WhatisthefunctionofenhancedtransmissionselectioninanFCoEenvironment?A.ProvidesavailablebandwidthtootherclassesoftrafficwhenaparticularclassoftrafficdoesnotuseitsallocatedbandwidthB.ProvidesthecapabilitytoindependentlypausetransmissionofFCoEframesovereachvirtuallink C.EnablesanFCoEswitchtosendasignaltootherFCoEswitchesthatneedtostoporslowdowntheirtransmissionsD.AllowsanFCoEswitchtodistributeconfigurationparameterstotheconvergednetworkadaptersCorrectAnswer:AQUESTION65WhichbenefitisprovidedbyEMCPowerPath?A.DynamicloadbalancingB.DeduplicationofnetworktrafficC.MultiplexinghosttrafficD.SegmentationoffabrictocreateVSANsCorrectAnswer:AQUESTION66[?]InaCASenvironment,whatisusedtogenerateacontentaddress?A.BinariesofthedataB.CombinationofdataandmetadataoftheobjectC.LocationoftheobjectD.ObjectmetadataCorrectAnswer:AQUESTION67Clickonthecalculatoriconintheupperleftcorner.[?]Anapplicationuses20,10GBdevices.Apointer-basedfullvolumereplicaoftheapplicationisrequiredevery6hours.Eachreplicawillbekeptfor24hours.Thedatachangesby10%every4hours.Howmanyreplicadevicesarerequired?A.20B.60C.80D.120CorrectAnswer:CQUESTION68WhichiSCSInamingfeatureusesa16-characterhexadecimalstring?A.EUIB.IQNC.iSNSD.ARPCorrectAnswer:A1、iqn（iSCSIQualifiedName）格式是：“iqn”+“年月”+“.”+“域名的顛倒”+“:”+“設(shè)備的具體名稱(chēng)”，之所以顛倒域名是為了避免可能的沖突。舉例：.h3c.rd:test2、eui（ExtendUniqueIdentifier）eui來(lái)源與IEEE中的EUI，格式是：“eui”+“64bits的唯一標(biāo)識(shí)（16個(gè)字母）”。64bits中，前24bits（6個(gè)字母）是公司的唯一標(biāo)識(shí)，后面40bits（10個(gè)字母）是設(shè)備的標(biāo)識(shí)。舉例：eui.acde48234667abcd3、naa（NetworkAddressAuthority）由于SAS協(xié)議和FC協(xié)議都支持naa，iSCSI協(xié)議定義也支持這種名字結(jié)構(gòu)。naa的格式：“naa”+“64bits（16個(gè)字母）或者128bits（32個(gè)字母）的唯一標(biāo)識(shí)”。舉例：naa.52004567BA64678Dnaa.62004567BA64678D0123456789ABCDEF在實(shí)際使用過(guò)程中，iSCSI節(jié)點(diǎn)名稱(chēng)可以不這么復(fù)雜。QUESTION69[?]Whatdescribesarepudiationattack?A.AnattempttocompromiseaccountabilitygoalsofthesecurityB.Stealingaprivatekeytodecryptthedata-in-transitC.UnauthorizedaccesstoinformationtocompromiseconfidentialityD.AseriesofrepetitiveattackstothephysicalinformationinfrastructureCorrectAnswer:AQUESTION70Clickonthecalculatoriconintheupperleftcorner.[?]Adepartmentwithinanorganizationrequires200GBofstoragefortheirbusinessapplication.TheproductionLUNisRAID1+0protectedandhasalocalandremotereplica.ThelocalreplicaisonaRAID1LUNandtheremotereplicaisonafive-diskRAID5LUN.IfthecostperGBofstorageis$2.00,whatisthechargebackcosttothedepartmentforapplicationstorage?A.$1050B.$1500C.$2100[noreason]D.$2900CorrectAnswer:CQUESTION71WhatisacharacteristicofanFC-ALimplementation?A.ReservesoneaddressforconnectinganFC-SWportB.Supportsconnectivityupto15millionnodesC.DevicescanbeaddedandremoveddynamicallywithoutanyimpactD.RequiresatleastoneconnectivitydeviceCorrectAnswer:AQUESTION72WhichiSCSIhostconnectivityoptionisrecommendedinaCPU-intensiveapplicationenvironment?A.iSCSIHBAB.NICwithsoftware-basediSCSIinitiatorC.TCPoffloadengineD.ConvergedNetworkAdapterCorrectAnswer:AQUESTION73Whatisacharacteristicofanenterpriseflashdrive?A.Usessemiconductor-based[半導(dǎo)體]solidstatemedia[SSD]B.PerformsdatasearchandretrievalsequentiallyC.Performsrotationalspeedatmorethan30000rpmD.WritesonceandreadsmanyCorrectAnswer:AQUESTION74[?]Whatdefinesthetimetakentopositionthesectorontheplatterundertheread/writehead?A.Rotational[旋轉(zhuǎn)的]delayB.SeektimeC.ResponsetimeD.DatatransferrateCorrectAnswer:AQUESTION75Whatistrueaboutcachedirtypage?A.DatathathaschangedbutisnotyetwrittentodiskB.DatareadfromdiskbutnotaccessedbythehostC.DatathathaschangedandhasbeenwrittentodiskD.DatarequestedbythehostbutnotyetfetchedCorrectAnswer:AQUESTION76Asyourorganization'sSANenvironmentgrows,yourealizethereisagreaterneedtomanageSANsecurity.WhichmechanismisrequiredtopreventunauthorizedactivityontheFCfabricformanagementoperations?A.Role-basedaccesscontrol[role]B.AccesscontrollistsC.VSAND.ZoningCorrectAnswer:AQUESTION77Whichoperationisperformedbyascale-outNASwhenitreceivesalargewriteI/Ofromitsclients?A.I/OisstripedacrossmultiplenodesforprocessingB.I/OissenttothehighperformancenodeintheclusterforprocessingC.AnewnodeisdynamicallyaddedtotheclustertoprocesstheI/OD.I/OissenttothehighstoragecapacitynodeintheclusterforprocessingCorrectAnswer:AQUESTION78Whendevelopingadisasterrecoveryplan,whatistheresultofchoosingaparticularrecoverytimeobjectiveforasystem?A.DeterminesthetypeandlocationofthebackupmediaB.DetermineshowoftentotakeabackupofthesystemC.DetermineshowlongtoretainbackupcopiesD.DetermineshowmanytransactionlogsshouldbebackedupCorrectAnswer:AQUESTION79Whichoperationwritesdataincache,andimmediatelytodisk,beforesendinganacknowledgementtothehost?A.Write-throughcache[透過(guò)Cache寫(xiě)入]B.Write-backcacheC.WriteasidecacheD.WritecachevaultingCorrectAnswer:AQUESTION80[?]WhatisabenefitofWWNzoningoverportzoning?A.Aserver,afterbeingmovedtoanotherswitchportinthefabric,maintainsconnectivitytoitszonepartnerswithouttheneedtomodifythezoningconfiguration.B.Aserver,afterreplacementofitsHBAs,maintainsconnectivitytoitszonepartnerswithouttheneedtomodifythezoningconfiguration.C.Aserver,afterreplacementofitsHBAs,doesnotrequireperformingafabriclogintomaintainconnectivitytoitszonepartners.D.Aserver,afterbeingmovedtoanotherfabric,maintainsconnectivitytoitszonepartnerswithouttheneedtomodifythezoningconfiguration.CorrectAnswer:AQUESTION81Clickonthecalculatoriconintheupperleftcorner.Adepartmentconductsbusiness,MondaythroughSaturdayfrom9A.M.to5P.M.eachday.Thedepartmenttakesinrevenueonanaverageof$500,000perweek.Employeesalariesareapproximately$5,000perweek.ThedepartmentrequirestheuseofacomputersystemwithanRPOof2hoursandanRTOof4hours.Todeterminethebusinessimpactofdowntime,whatistheaveragecostofdowntimeperhourofthebusiness?A.$10,417B.$10,521[noreason]C.$11,105D.$12,024CorrectAnswer:BQUESTION82InKerberosauthentication,whatisaroleoftheActiveDirectory?A.Verifiestheuser'slogininformationB.ImplementstheAuthenticationserviceandTicketGrantingserviceC.VerifiesthesessionIDwhentheclient-serversessionisestablishedD.MaintainstheaccesscontrollistinakeytabfileCorrectAnswer:AQUESTION83AfinancedepartmentwantstosecureitsdatawhilethedatatraversesovertheFCSAN.CurrentlytheSANisalsousedbyotherdepartmentsintheorganization.Whichimplementationshouldberecommendedtoisolateotherdepartmenttrafficfromthefinancedepartmenttraffic?A.VirtualSANB.VirtualLANC.FabricbindingD.PortbindingCorrectAnswer:AQUESTION84Whichdatacentercharacteristicreferstothecapabilitytogrowresourceswithoutimpactingbusinessoperations?A.ScalabilityB.SecurityC.AvailabilityD.PerformanceCorrectAnswer:AQUESTION85[?]Whatisanadvantageofreportingonstoragearrays?A.PlanningforcapacityB.MonitoringthenumberofarraysC.MonitoringthenumberofdisksinaRAIDgroupD.PlanningforstoragegroupsCorrectAnswer:BQUESTION86[?]AcustomerwantstoconnectiSCSI-enabledhoststoanexistingFibreChannel(FC)storagearray.Whichnetworkingdeviceenablestheconnectivitybetweenthehostandthestoragearray?A.iSCSIgatewayB.FCIPbridgeC.FCgatewayD.IProuterCorrectAnswer:AQUESTION87Whatisabenefitofvirtualstorageprovisioningovertraditionalprovisioning?