單項選擇題

A user reports that a newly installed external CD-RW is not working. Jill, a technician, is called and notes the user has the CD-RW drive, a flash disk, a rarely used external hard drive and a wireless network adapter plugged into an external USB hub.
Which of the following is the MOST likely reason for the problem?（）

A. The USB hub needs more USB ports.
B. The USB hub is a version 1.1.
C. The USB hub was not externally powered.
D. The USB hub is a version 2.0.

你可能感興趣的試題

單項選擇題

A technician is trying to load a device driver directly from the manufacturer’s CD for a PCI NIC. The operating system is Windows Vista. Windows refuses to accept the driver. Which of the following is the MOST likely cause of this problem?（）

A. The driver CD is for Windows XP only.
B. The technician needs to initialize the NIC first within Device Manager before installing a driver.
C. The driver on the CD is not digitally signed.
D. The driver is corrupt.

單項選擇題

Mike, a technician, is working on a computer and the air is dry. Which of the following choices is the BEST option for Mike to use?（）

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.