AnonlineretailerisconsideringdeployingadatabaseapplicationonxSeriesandWindowstoservetheirWeb-basedtransactions.Thedatabasewillneedabout4TBofusablestorage.Downtimecoststhecustomertensofthousandsofdollarsperminute，sosystemavailabilitywillbeofhighestpriority.Thecustomerneedstoacquirethesystemwithinacertainbudgetbutwillpayforthingsthatprovidehighersystemavailability.Whichofthefollowingwillbethemostappropriatesolution？（）
A.AdualpathedswitchedDS4000SolutionwithClustering，Remotereplication，RedundantNICs，andFibreattachedbackup
B.AsinglepathDirectattachDS4000solutionimplementedwithClusteringandSANBasedBackupcombinedwithIBMDirectorforPFAmanagement
C.AdualpathedDirectAttachfibresolution，alongwithdualNICsandmemorymirroring
D.AniSCSIsolutionwithdualNIC’swiththeFlashcopyoptionenabledontheDS300
参考答案：A
