单项选择题
Which of the following can be used when installing the OS without a boot disk？（）
A.ZFS B.VMFS C.PXE D.PBX
单项选择题 Adatacenterhashadapoweroutage.WhichofthefollowingshouldtheadministratordoFIRST oncethepowerisrestored？（）
单项选择题 WhichofthefollowingportsdoesRDPusebydefault？（）
单项选择题 Whendisposingofdata，whichofthefollowingshouldbeconsideredFIRST？（）
