单项选择题 A user reports that their UPS is making a loud beeping sound. Which of the following would cause this problem?（）

单项选择题 Which of the following services processes print requests and sends them to the printer?（）

单项选择题 A customer’s computer crashes consistently when a specific application is launched. Thetechnician has looked at the computer and confirmed the cause of the crash. Which of thefollowing is the NEXT troubleshooting step the technician should take?（）