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？（）

remove all peripherals and reinstall them one at a time

replace the CMOS battery

check the AC power cord and verify the power source

back up the entire hard drive

参考答案和解析

正确答案： B

解析：暂无解析

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第1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.

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第2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 memoryB、The CMOS batteryC、The PCIe power jackD、The processor for chip creep

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第3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 cordD、Use an anti-static wrist strap.E、Turn off the computer.F、Place the computer on the anti-static mat

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第4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 entire hard drive

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第5题

A technician is troubleshooting a monitor displaying a blank screen and the power indicator light ison. Which of the following should the technician do next?（）A、Test the computer with a known-good monitor.B、Check if the monitor is still covered under the manufacturer’s warranty.C、Replace the monitor’s power cord with a known-good power cord.D、Swap out the computer’s video card.

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第6题

After booting up a new computer， a technician observes that the USB ports are not working with any USB devices. Which of the following should be done FIRST？（）A、Check the computer to verify that the jumper settings for USB are correct.B、Connect the USB devices to a different computer to test the devices.C、Buy new USB wires and test USB functionality.D、Check the BIOS to verify that USB functionality is enabled.

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第7题

A computer boots up with the error "CMOS Checksum Failure." Which of the following components needs to be replaced？（）A、power supplyB、CMOS chipC、motherboardD、CMOS battery

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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

参考答案和解析

更多“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”相关问题

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