单项选择题 Two new PCs will have a DVD-RW drive for support use. The PCs will be used for Point of Salestransactions and everything will be password protected or disabled. Which of the following is the BEST way to disable the DVD-RW drives?（）

单项选择题 Which of the following devices would allow a technician to utilize a single mouse, keyboard, and display to control numerous desktop PCs?（）

单项选择题 A bank wants to maximize the security of employee computer data displayed on their screen.Which of the following would BEST accomplish these goals?（）