单项选择题
A. Install a high gain antenna focused towards the office wall.
B. Run CAT5e cable to all of the rooms that have poor signal strength.
C. Install a wireless repeater at the far end of the house.
D. Install a second wired router in the far end of the house.
单项选择题 A program is crashing and causing the computer to lockup. Which of the following is the BESTlocation for a technician to check for further information about the cause of the crash?（）
单项选择题 A second optical drive has been added to the computer and needs to be referenced as the R: drive by the Microsoft Windows operating system. Which of the following places in Microsoft Windows will BEST accomplish this task?（）
单项选择题 Which of the following locations would a technician use to add a Windows 7 computer to adomain?（）