单项选择题
Which of the following is the MINIMUM amount of hard drives needed for a RAID 5 array?（）
A.2
B.3
C.4
D.5
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A technician is attempting to determine whether a CAT5 patch cord is a straight-through or acrossover. Which of the following is the BEST to use to determine the cord type?（）
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单项选择题
A workstation has an error message that states “NTLDR is missing”. Which of the following is MOST likely the cause?（）
A. The system did not shutdown gracefully
B. The CMOS battery is dead
C. The BIOS firmware is corrupt
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