单项选择题
A. Update the firmware on the machine to accommodate for higher temperatures.
B. Use Disk Cleanup and Defrag to keep the machine from working as hard.
C. Use a can of compressed air to clean out blocked ventilation.
D. Relocate the machine to a cooler part of the building.
单项选择题 Which of the following connectors is MOST commonly used for UTP cable?（）
单项选择题 An end user reports that their computer is not performing as fast as it used to and it shuts down unexpectedly. Which of the following is the MOST likely cause?（）
单项选择题 After hardware upgrades have been installed, the technician boots the computer system. Nodisplay output is observed but a beeping is heard from the computer. Which of the following is the MOST likely issue?（）