单项选择题 The technician has replaced a power supply with an identical power supply, and now the high end graphics card is not working. Which of the following should the technician check?（）

单项选择题 A technician needs to change an existing drive formatted in FAT32 to a NTFS format, whileretaining the data. Which of the following is the BEST way to make this change?（）

单项选择题 A technician wants to create a spanned volume on a set of hard drives. Which of the following tools will identify if the drives will support a spanned volume?（）