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
D.COG

单项选择题AcustomerhasrequestedanIBMSystemStorageDS8300&en

A.7TBrawcapacity，64GBcache，and24portsfortheDS8300.Thestoragespecialisthasbeenaskedtomodelthisconfigurationusingtheexpectedworkloadtoverifythatitisaviablesolution.

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A.Operatingenvironment
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C.Point-in-timecopy
D.CountKeyData