单项选择题
A. The computers BIOS is corrupt.
B. The computers operating system needs to be updated.
C. The computers CMOS battery has lost its charge.
D. The computers power supply is failing.
单项选择题 Which of the following could cause an Inaccessible boot drive error during the boot process? （）
单项选择题 After removing several obsolete programs from a PC, a user is experiencing slower than usuallyprocessing times. Which of the following would be the BEST way to speed up the processing? （）
单项选择题 If a technician is traveling outside of the US, which of the following should be checked before setting up a workstation? （）