单项选择题
A.Antivirus B.Firewall C.Anti-spyware D.Pop-upblocker
A technician is testing a power supply for correct outp...
A technician is testing a power supply for correct output voltages at the HDD power connector. Which of the following voltages should the technician expect for a correctly working power supply?（）
A.6V B.9V C.12V D.24V
A customer reports that error messages occasionally app...
单项选择题A customer reports that error messages occasionally appear and quickly disappear. Which of thefollowing is the BEST place for a technician to begin troubleshooting this issue?（）
A. Run a System Restore B. Check Device Manager C. Check the Event Logs D. Check the System Information
A user, Jill, is reporting her mouse is moving when Jil...
单项选择题A user, Jill, is reporting her mouse is moving when Jill is not moving it, and the computer is running slower than normal. Which of the following is the FIRST action that Karen, a technician, should take?（）
A. Run chkdsk. B. Run an antivirus program. C. Replace the faulty mouse. D. Remove any recently added hardware.
