单项选择题
A. HBA
B. PBX
C. VoIP
D. NIC
单项选择题 Acompanybacksuptheirdatausingdaily，weekly，andmonthlytapebackups.Theweekly backupsarealsoknownaswhichofthefollowing？（）
单项选择题 WhichofthefollowingBESTdescribeshowservervirtualizationcancutdownITcosts？（）
单项选择题 AtechnicianwithaWindowsserverwouldliketouseWindowsSoftwareUpdateServices（WSUS）todeploypatches.WhichofthefollowingMUSTthetechnicianassigntotheservertoinstall WSUS？（）