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单选题What is the FIRST step in diagnosing a completely dead computer that was working fine the day before？（）A remove all peripherals and reinstall them one at a timeB replace the CMOS batteryC check the AC power cord and verify the power sourceD back up the

题目
单选题
What is the FIRST step in diagnosing a completely dead computer that was working fine the day before？（）
A

remove all peripherals and reinstall them one at a time

B

replace the CMOS battery

C

check the AC power cord and verify the power source

D

back up the entire hard drive

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相似问题和答案

第1题：

A Windows 2003 Server is no longer able to access its internal SCSI drive. The cables are connected, the drive has power, and the drive shows up in Device Manager; however, the My Computer window does not show the drive that was previously working and formatted with NTFS.Which of the following would be the FIRST step in regaining access to the drive?（）

A. Reformat the NTFS partition.

B. Recreate the partition that was deleted.

C. Rewrite the MBR.

D. Run a check disk on the drive


参考答案：D

第2题：

A technician turns on a PC and before the computer boots up, the technician is prompted for apassword. The technician does not know the password. Which of the following can the techniciando to allow access to the PC?（） (Select TWO).

  • A、Set the clear password jumper on the motherboard
  • B、Enter the BIOS setup and select the clear password setting
  • C、Remove the power cord from the power supply and then plug it back in
  • D、Power cycle the PC
  • E、Remove the CMOS battery for 15 minutes

正确答案:A,E

第3题：

A technician turns on a PC and before the computer boots up, the technician is prompted for apassword. The technician does not know the password. Which of the following can the techniciando to allow access to the PC?（） (Select TWO).

A. Set the clear password jumper on the motherboard

B. Enter the BIOS setup and select the clear password setting

C. Remove the power cord from the power supply and then plug it back in

D. Power cycle the PC

E. Remove the CMOS battery for 15 minutes


参考答案：A, E

第4题：

The technician has replaced a power supply with an identical power supply, and now the high end graphics card is not working. Which of the following should the technician check?（）

  • A、The memory
  • B、The CMOS battery
  • C、The PCIe power jack
  • D、The processor for chip creep

正确答案:C

第5题：

A customer states their computer was fine until yesterday when they heard a pop noise and thecomputer stopped working. Which of the following components should the technician test FIRST?（）

  • A、Main system board
  • B、Processor
  • C、Hard disk drive
  • D、Power supply

正确答案:D

第6题：

which of the following actions will you not take before beginning installation or removal of anyNON－PNP hardware device inside the computer case?()

A. Place all the hardware components in static proof bags.

B. Remove all the jumpers from the motherboard.

C. Switch off the main power and remove the power cord

D. Use an anti-static wrist strap.

E. Turn off the computer.

F. Place the computer on the anti-static mat


参考答案：B

第7题：

A technician has installed a new motherboard in a workstation, but after hardware tests, themotherboard has failed. Which of the following should the technician do FIRST before replacingthe motherboard? （）

  • A、Reseat all power connections.
  • B、Remove the CMOS battery.
  • C、Install the graphics card.
  • D、Ground to the case.

正确答案:D

第8题：

A technician needs to replace a computer’s hard drive. Which of the following should thetechnician do FIRST?()

A. Remove network connections

B. Remove the RAM

C. Self ground on the computer case

D. Disconnect power to PC


参考答案：D

第9题：

A laptop operates on battery power when connected with an AC adapter. Once the battery discharges, the computer turns off and will not turn back on. Which of the following are the MOST likely causes of the laptop issue? （）(Select TWO).

  • A、The LCD monitor’s power inverter does not function properly.
  • B、The operating system’s power settings prevent the battery from charging.
  • C、The battery is not compatible with the laptop.
  • D、The internal power connection on the motherboard is faulty.
  • E、The power adapter is not working.

正确答案:D,E

第10题：

which of the following actions will you not take before beginning installation or removal of anyNON-PNP hardware device inside the computer case?（）

  • A、Place all the hardware components in static proof bags.
  • B、Remove all the jumpers from the motherboard.
  • C、Switch off the main power and remove the power cord
  • D、Use an anti-static wrist strap.
  • E、Turn off the computer.
  • F、Place the computer on the anti-static mat

正确答案:B

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