单项选择题

Aglobalcustomer’sITstrategyisbasedupontwoDS8000systemsa……

Aglobalcustomer’sITstrategyisbasedupontwoDS8000systemsandanNseriesgateway.Theywanttoprotecttheirbusinessbyimplementingadisasterrecoverysolution.Thestoragespecialisthasrecommendedcascadedmirroring.Whichofthefollowingisthebusinessbenefitofcascadedreplication（）
A.itiscostefficient，asasingleNseriesorDS8000canhaveitscontrollerssplitbetweentheprimaryandsecondarysiteandusesemi-synchronousmirroringwhileusingasynchronousmirroringtoathirdsite
B.thesecondsiteactsasarepeaterstationsothatgreatergeographicaldistancescanbeachieved
C.ITprovideshighavailabilitytogetherwithdisasterrecoverybyimplementingMetro/GlobalMirroracrossthreegeographicallydispersedsystems
D.itguaranteesdataprotectionbyimplementingtwosynchronouscopiesoftheprimarysitedata

A.Theywanttoprotecttheirbusinessbyimplementingadisasterrecoverysolution.Thestoragespecialisthasrecommendedcascadedmirroring.Whichofthefollowingisthebusinessbenefitofcascadedreplication（）
A.itiscostefficient，asasingleNseriesorDS8000canhaveitscontrollerssplitbetweentheprimaryandsecondarysiteandusesemi-synchronousmirroringwhileusingasynchronousmirroringtoathirdsite
B.thesecondsiteactsasarepeaterstationsothatgreatergeographicaldistancescanbeachieved
C.ITprovideshighavailabilitytogetherwithdisasterrecoverybyimplementingMetro/GlobalMirroracrossthreegeographicallydispersedsystems
D.itguaranteesdataprotectionbyimplementingtwosynchronouscopiesoftheprimarysitedata

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单项选择题AcustomerwiththreeWindowsserverswantstocreateasharedstoragearray.Oneserverrunsa200GBOracledatabasewithhightransactionrates.Thesecondserverisafileserverwith3TBofdataandthethirdserverisamailserverwith150GBofstorage.ThekeycustomerdecisionmakerhasonlypurchasedEMCCXstorageproductsinhispreviousemployment.Costisakeyconsideration.FromthefollowingwhichisakeyfeaturethatcouldconvincethecustomertopurchaseaDS3500overanEMCCXstoragesystem?（）A.SATAandSAS2.0diskdrivetechnologycanbemixedindifferentenclosuresB.nearlineSAS2.0andSAS2.0diskdrivetechnologycanbemixedinthesameenclosureC.SATAdiskdrivetechnologycanprovideboththehightransactionratesandlargedrivesizesneededforthissolutionD.SAS2.0diskdrivetechnologycanprovideboththehightransactionratesandlargedrivesizesneededforthissolution

A.Oneserverrunsa200GBOracledatabasewithhightransactionrates.Thesecondserverisafileserverwith3TBofdataandthethirdserverisamailserverwith150GBofstorage.ThekeycustomerdecisionmakerhasonlypurchasedEMCCXstorageproductsinhispreviousemployment.Costisakeyconsideration.FromthefollowingwhichisakeyfeaturethatcouldconvincethecustomertopurchaseaDS3500overanEMCCXstoragesystem?（）
A.SATAandSAS2.0diskdrivetechnologycanbemixedindifferentenclosures
B.nearlineSAS2.0andSAS2.0diskdrivetechnologycanbemixedinthesameenclosure
C.SATAdiskdrivetechnologycanprovideboththehightransactionratesandlargedrivesizesneededforthissolution
D.SAS2.0diskdrivetechnologycanprovideboththehightransactionratesandlargedrivesizesneededforthissolution

单项选择题WhichofthefollowingcustomerenvironmentsisaddressedbyIBMSystemStorageNseries gateways?（）

A.acustomerwithCIFS,NFSandGPFSrequirements
B.acustomerwantingtonativelyimplementEasyTier
C.acustomerwhohaslargeblocksequentialwriterequirements
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A.ProblemDeterminationandServiceGuide
B.xRef
C.ServerGuideHardwareReference
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A.Operatingenvironment
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A.Quorumwasnotturnedoff
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C.Thedumpspacewasnotmirrored
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单项选择题以下有关特征数据归一化的说法错误的是：( )

A.特征数据归一化加速梯度下降优化的速度
B.特征数据归一化有可能提高模型的精度
C.线性归一化适用于特征数值分化比较大的情况
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单项选择题Howcanpermissionsbesetupon／tmpsothatoneuserinagroupcannotdeleteanotheruser’sfilesinthatsamegroup（）

A.chmod+s/tmp
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A.Bothpartitionshavethreenetworkinterfaceadapters：twoserviceadaptersonaproductionnetworkconnectedtoanIPswitch，andanadministrationadapteronastand-alonehubthatisconnectedtothep690server’sHMC.Non-IPhearbeatpathscannotbeconfiguredduetotheavailablehardwareinthep690servers.Giventheresourcesavailable，whatisthebestconfigurationforthiscluster？（）
A.Addhardwaretoprovideeitherserialheartbeatsorshareddiskheartbeats.
B.DefinetheadministrationnetworksoHACMPwillsendheartb4eatsoverthenon-routed
C.
D.AddtheadministrationnetworkadapterstotheproductionresourcegroupswithIPATviaIP
E.
F.ConfiguretheIPNetworkInterfaceModuleinHACMPwithanincreasedheartbeatdetection

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A.191.168.5.4
B.111.12.53.2
C.5.2.4.4
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C.NTFS
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A.ParallelHASPkey
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A.Howisitaccomplished？（）
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B.Enablegatedontheserver
C.Enableipforwardingontheserver
D.Setnetworkoptionsbacktodefault

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A.2个
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