单项选择题

Acustomerneedstoinstalladatabaseonaserver.Whichofthefol……

A customer needs to install a database on a server. Which of the following statements describes how to modify the RAID configuration for optimal performance？（）

A.Place both the database and transaction log on two logical drives in one RAID-10 array
B.Place both the database and transaction log on two logical drives in one RAID-1E array
C.Place the database on a RAID-1E array and place the transaction log on a separate RAID-5 array
D.Place the database on a RAID-5 array and place the transaction log on a separate RAID-1E array

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单项选择题Acustomerisexperiencingaperformancebottleneck.TheserverisperformingsequentialI Orequestswithlargeblocksizesof64KB.Improvingwhichofthefollowingstoragesubsystemcharacteristicshasthebiggestimpactonthisbottleneck？（）

A.Seek Time
B.Drive RPM
C.Data Transfer Rate
D.Rotational Latency

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A.Disable the ServRAID cache
B.Change the RAID level to 10
C.Change the cache level to Write Through
D.Add five more drives to the array to increase the number of read/write heads

单项选择题Acustomerwantstocreatebackupsataremotelylocateddatacenter.Priceandperformanceareofprimaryimportance，sobackuptodisksattheremotelocationisselectedinsteadoftape.Theremotelocationis1KM（0.6Miles）awayfromthedatacenter.NASisthesolutionbeingconsidered.Whichofthefollowingisthebenefitofthissolution？（）

A.NAS runs on 2Gb fibre， which will provide better performance.
B.NAS uses WAN infrastructure， which can easily span the 1 KM gap.
C.NAS requires fibre storage， which allows dual paths for redundancy.
D.NAS requires iSCSI routers and offers better growth environment.

单项选择题AttachingtoaSCSIstoragesystemthroughredundantpathswillprovidewhichofthefollowing？（）

A.The ability to interleave writes to the array
B.High Availability and failover
C.LUN sharing via Target Mode SCSI on the storage system
D.A greater number of LUNS available on the same storage system

单项选择题Acompanyinstalledanewservertomanageitselectronicimagestorage.Theyhavetwodistinctimagesizes：2KBand16KB.TwodistinctarraysarecreatedonaServeRAIDadapter.Thefirstarraywillstoreallofthe2KBimages，andthesecondarraywillstoreallthe16KBimages.TheRAIDstripesizewasleftatthedefaultsizeof8KB.Afterinstallation，aperformanceproblemisidentified.Accordingtoperformancemonitoring，80%oftheimagesare16KB.Whichofthefollowingwillbestoptimizeperformance？（）

A.Change the stripe size on the RAID controller
B.Change the stripe size to 1024K on the RAID controller
C.Change the stripe size on the RAID controller for the first array
D.Change the stripe size on the RAID controller for the second array