單項選擇題

A laptop has a non-functioning keyboard. After the keyboard was replaced with a known good one, the technician finds that the keyboard still is not functioning. Which of the following steps should the technician take NEXT?（）

A. Replace the motherboard.
B. Check all connections.
C. Replace the USB controller.
D. Check the PS/2 connector.

你可能感興趣的試題

A technician has lost a necessary jumper for a new hard drive that must be installed immediately.Which of the following is the BEST solution?（）

A. Use a jumper from the motherboard where the new drive is going to be installed.
B. Use a jumper from a hard drive that is no longer functioning.
C. Contact the manufacturer of the new hard drive and have a replacement jumper shipped immediately.
D. The new hard drive must be replaced

單項選擇題

A PC is powered on and begins POST. The PC takes a long time when scanning for drives. The BIOS reports no hard drive can be found but the CD-ROM is identified. The technician knows that there are two hard drives on the primary EIDE controller and a CD-ROM on the secondary EIDE controller.
Which of the following is the MOST likely cause of the problem?（）

A. Both hard drives have the master jumper in place.
B. One hard drive is set as master and the other slave.
C. The hard drive data cable is reversed.
D. Both hard drives have the cable select jumper in place.

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A laptop has a non-functioning keyboard. After the keyboard was replaced with a known good one, the technician finds that the keyboard still is not functioning. Which of the following steps should the technician take NEXT?（）

你可能感興趣的試題

A technician has lost a necessary jumper for a new hard drive that must be installed immediately.Which of the following is the BEST solution?（）

99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精