单项选择题
A. Redundant power supplies with one power supply connected and one power supply as a hot spare.
B. Redundant power supplies with each connected to a separate power circuit.
C. Redundant power supplies connected via a Y-cable.
D. Redundant power supplies with each connected to the same power circuit.
单项选择题 Anadministratornoticesthateverytimeaparticularserverisrestarteditrequiresapasswordin orderfortheservertobeginthestartupprocess.Whichofthefollowingisthereasonthisis happening？（）
单项选择题 Which of the following file systems are native to *nix?（）
单项选择题 Which of the following is BEST described as a storage system that can be connected to multiple servers through a fiber channel?（）