单项选择题
A. Change the time and date in the BIOS.
B. Replace the keyboard.
C. Check for media in the optical drive.
D. Add more RAM.
多项选择题 Which of these are symptoms of malware on a computer? （）(Select TWO).
单项选择题 Malware has been detected and removed on a customer computer several times in a short periodof time. Which of the following will BEST help prevent future occurrences?（）
单项选择题 Which of the following is the default location for the User profiles folder in Windows 7?（）