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
D. A virus has corrupted the file
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单项选择题
A technician is replacing a processor in a workstation. After installation, the workstation starts up and immediately shuts down; the technician tries to start the workstation several more times and gets the same result. Which of the following is the cause of this issue?（）
A. The workstation is not plugged in.
B. The thermal paste was not applied.
C. The memory was not installed properly.
D. The L2 cache was not cleared. -
单项选择题
A technician upgrades a computer from Windows XP Media Center Edition to Windows Vista Home Premium. After the upgrade Aero will not turn on. The system has a 2.4 GHz processor, 1GB of RAM, and a DirectX 7 video card. Which of the following will resolve this issue?（）
A. Aero cannot be used on Windows Vista Home Premium.
B. Upgrade the video card to a DirectX 9 compatible card.
C. Upgrade the video driver.
D. Upgrade the RAM to 4GB -
单项选择题
Which of the following can be used to achieve the highest transfer rate for an external hard drive?（）
A.FireWire
B.eSATA
C.USB1.1
D.USB2.0
