單項選擇題

Which of the following is a reason why Bob, a technician, should install case fans in the front of acomputer case?（）

A. It forces hot air out of the PC
B. The fan is easier to remove and clean
C. It forces cooler air into the power supply quickly
D. It forces cooler air across the motherboard

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單項選擇題

When Bob, a technician, powers up a desktop PC, the unit will repeat three short beeps and will not POST. Which of the following is MOST likely the problem?（）

A. The memory is failing.
B. The CPU is overheating.
C. The hard drive is not attached properly.
D. The operating system is not installed.

單項選擇題

Which of the following is the default location for user account files in Windows Vista?（）

A. C:\windows\System32
B. C:\users\public
C. C:\users
D. C:\documents and settings

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