单项选择题
A.HS21
B.HS22
C.HS22V
D.HX5
单项选择题 Aretailcustomersapplicationenvironmentrequires32memoryslotsandfourprocessorstorunscientific，andtechnicalcomputing，financial，weathersimulation，andlifesciences.WhichofthefollowingSystemxservermeetstheseneedsatminimumcost？（）
单项选择题 WhichIBMSystemDirectortaskwillgiveyoutheabilitytoupdatefirmwareanddevicedriversonSystemxservers？（）
单项选择题 Acustomerserverhasthemaximumlocalstorageinstalled.Thecustomerplanstosharethisnewstoragewithotherservers.Whichofthefollowingprovidesthatserveradditionalstorage？（）