单项选择题
A.RISC
B.CISC
C.Multi-threading
D.64-bit
单项选择题 AcustomerhaspurchasedatriplechannelmemorykitcontainingthreeDDR3RAMmodules.TheservertheRAMisintendedforonlyhasadualchannelcapablemotherboard.Whichofthe followingistheBESTactiontoperform？（）
单项选择题 Anadministratorneedstoinstalla2Userverintoarack.Whichofthefollowingshowshowmuch space，inheight，needstobeavailablefortheservertofitintherack？（）
单项选择题 AtechnicianistroubleshootingalackofInternetconnectivityaffectingtheirentireoffice.The techniciansuspectstheissueiswiththeirInternetServiceProviderfailingtoprovideservice.WhichofthefollowingcommandlinetoolsshouldthetechnicianusetoBESTtestthistheory？（）