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单选题
A user needs a laptop keyboard replaced because the space bar is not working. Mike, a technician, replaces the keyboard, and notices that a diagonal set of keys will not respond. Which of the following is the MOST likely cause?（）
A
StickyKeys is enabled and needs to be disabled.
B
The new keyboard is defective and needs to be replaced.
C
The system board is defective.
D
The keyboard ribbon is not seated properly.
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更多 “单选题A user needs a laptop keyboard replaced because the space bar is not working. Mike, a technician, replaces the keyboard, and notices that a diagonal set of keys will not respond. Which of the following is the MOST likely cause?（）A StickyKeys is enabled and needs to be disabled.B The new keyboard is defective and needs to be replaced.C The system board is defective.D The keyboard ribbon is not seated properly.” 相关考题
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考题
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Replace the motherboard.B
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考题
单选题A client reports that the cursor on their laptop moves to one corner of the screen and stays there when they try to use the keyboard joystick. Which of the following components will MOST likely need to be replaced to resolve the issue?（）A
TouchpadB
MotherboardC
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External pointing device
考题
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RJ-11 connector needs to be re-crimpedB
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User has plugged the wrong end of the cable into the portD
RJ-11 connector needs to be replaced with an RJ-45 connector
考题
单选题A military member has just returned to the United States from Europe and reports their personaldesktop computer does not work. Which of the following is the MOST logical solution to thisproblem?（）A
The computer is unable to work in the US because of EU licensing arrangementsB
The power supply needs to be replaced with one rated for 110 wattsC
The power supply needs a power inverter to handle the change in cyclesD
The power supply voltage needs to be switched to 110 from 220
考题
单选题A user reports that their PC is making a strange noise. Which of the following is the cause of the problem?（）A
A network cable is vibrating against the system case.B
An internal wire is improperly routed and is hitting the CPU fan.C
The thermal grease on the CPU has dried out and needs to be replaced.D
The CPU needs to be reseated.
考题
单选题A user reports the system runs fine for a few minutes and then freezes or locks up. Which of the following is the BEST cause of this issue?（）A
Memory is bad or not seated.B
Fans are failing.C
Power supply needs to be replaced.D
CD-ROM is faulty and needs to be replaced.
考题
单选题When a user is typing on a laptop the cursor sometimes moves on its own. Which of the following is MOST likely the cause？（）A
The keyboard driver needs to be updated.B
There are conflicting serial ports.C
The mouse driver needs to be updated.D
The user is brushing the touch pad while typing.
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