单项选择题
A.Energy star ratings
B.Active solar panels
C.Network storage array
D.Blade servers
多项选择题 Whichofthefollowingmethodseffectivelyremovesdatafromaharddrivepriortodisposal？（）
单项选择题 ThepowersavingstateinwhichacomputercutspowertoallitsunneededpartsandcopiestheRAMcontenttotheharddriveiscalled（）
单项选择题 Asmallbusinesscurrentlyhasaserverroomwithalargecoolingsystemthatisappropriateforitssize.Thelocationoftheserverroomisthetoplevelofabuilding.Theserverroomisfilledwithincandescentlightingthatneedstocontinuouslystayonforsecuritypurposes.WhichofthefollowingwouldbetheMOSTcost-effectivewayforthecompanytoreducetheserverroomsenergyfootprint？（）