单项选择题
A. gpedit.msc B. MSCONFIG C. services.msc D. fsutil
Which of the following can cause a ribbon on an impact ...
单项选择题Which of the following can cause a ribbon on an impact printer to tear?（）
A. The fuser B. The toner cartridge C. The platen D. The printhead
A user is unable to print to the network printer. A pri...
单项选择题A user is unable to print to the network printer. A print job appears in their print queue and cannotbe deleted. The user has the correct permissions to modify and delete print jobs. All other users are able to print to the network printer. Which of the following procedures should the technician try FIRST?（）
A. Cycle the power on the network printer. B. Verify the network cable is connected to the printer. C. Reinstall the printer driver. D. Restart the print spooler service.
A laptop has a non-functioning keyboard. After the keyb...
单项选择题A laptop has a non-functioning keyboard. After the keyboard was replaced with a known good one, the technician finds that the keyboard still is not functioning. Which of the following steps should the technician take NEXT?（）
A. Replace the motherboard. B. Check all connections. C. Replace the USB controller. D. Check the PS/2 connector.
