单项选择题
An uninstalled program is still attempting to load when Windows starts. Which of the following options can the technician suggest to stop this unwanted program from loading?（）
A. Services
B. Add or Remove Programs
C. System Configuration Utility
D. System File Checker
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A user reports that their PC is making a strange noise. Which of the following is the cause of the problem?（）
A. A network cable is vibrating against the system case.
B. An internal wire is improperly routed and is hitting the CPU fan.
C. The thermal grease on the CPU has dried out and needs to be replaced.
D. The CPU needs to be reseated. -
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Which of the following is the BEST tool to troubleshoot a DB-9 port?（）
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A laser printer displays ‘perform user maintenance’. The manufacturer’s information was not available when the user performed the maintenance, and the laser printer continues to display the maintenance code. Which of the following items needs to be performed?（）
A. The printer needs to be sent to the manufacturer for maintenance.
B. The printer’s firmware needs to be updated.
C. A printer system reset must be performed.
D. The maintenance page counter must be reset.
