单项选择题
A.RAID 1 and RAID 5
B.RAID 2 and RAID 10
C.RAID 3 and RAID 0
D.RAID 0 and RAID 5
单项选择题 Whichofthefollowingisabenefitofahotspare？（）
单项选择题 Whichofthefollowingstripesdataatthebitlevelandusesadedicateddiskforparity？（）
单项选择题 An administrator is installing Windows Server 2003 via CD on a new server with an SAS RAID array.When the administrator reaches the option to select the target installation drive， there are no drives listed. Which of the following is the FIRST thing the administrator should do？（）