单项选择题
A. Use a portable anti-static pad and wrist strap, ensuring all components remain on the mat, and the wrist strap is connected to the mat.
B. Leave the computer plugged in and running, to stabilize the power, and keep one hand on the case at all times while working on the unit.
C. Use a wrist strap, connecting it to the computer case. Leave the computer plugged into the outlet for grounding.
D. Advise the customer it is best if the computer is taken back to the shop for repair, so it will be in a controlled temperature environment.
单项选择题 The customer brings their mini-tower and a new DVD/RW drive they want installed. The technician finds a second hard drive in an empty 5.25 bay connected to the secondary bus and jumpered as a slave. The ribbon cable will not stretch from the primary hard drive to the open 5.25 inch bay. Which of the following is the BEST solution?（）
单项选择题 Bob, a technician, is adding a secondary IDE hard drive to an older system. After installation and the first boot, the drive is not showing in Disk Management. Which of the following is the MOST likely cause of the issue?（）
单项选择题 When using Device Manager, a red ‘X” indicates which of the following?（）