单项选择题
A. Deleted
B. Unchanged
C. Set
D. Copied
单项选择题 Anadministratorhasbeenhavingproblemswithserversecurity.Manyoftheservershavebeen infectedwithvirusesinthepast.WhichofthefollowingcanbedonetoensurethatsystemsavoidOS exploits？（）
单项选择题 Abaremetalbackuprequireswhichofthefollowingbackupmethod ologies？（）
单项选择题 Anadministratorisbuildingaserverthatwillrunadatawarehousingapplication.Theserverwas orderedwitheight300GBdrives.TheapplicationrequiresadedicatedstoragelocationfortheOS andoneforcriticalfiles.Thecriticalfilestorageneedsfastaccessbutmustprovidehigh redundancy.TheOSrequires100GBandthefilerequires950GB.Whichofthefollowing configurationswillBESTsuitthedatawarehouseneeds？（）