单项选择题
A. Power User access
B. Power on password
C. Administrative password
D. User profile access
单项选择题 A technician replacing a CRT monitor and the battery inside of a UPS wishes to dispose of thereplaced hardware. Which of the following should the technician do to BEST ensure properdisposal?（）
单项选择题 A computer’s case fan protects against which of the following environmental concerns?（）
单项选择题 Which of the following is MOST likely a managed, Layer 3 device?（）