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单选题
Which of the following should the technician do FIRST when replacing a motherboard?（）
A
Use a benchmarking tool
B
Use anti-static wrist band
C
Remove the CPU
D
Remove the power supply
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单选题Which of the following should the technician do FIRST when replacing a motherboard?（）A
Use a benchmarking toolB
Use anti-static wrist bandC
Remove the CPUD
Remove the power supply
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单选题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.
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单选题A technician is replacing fifteen 21 CRTs with 19 LCDs. The storage room is on the other side of the building. Which of the following safety measures should the technician take? （）A
Wear a back brace when lifting and carrying the CRTs to the storage room.B
Wear anti-static wrist straps to prevent ESD in the new monitors.C
Recycle the monitors after removing the capacitors for use in other monitors.D
Ask several technicians for help in lift the CRT monitors and use a cart for transporting them.
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单选题When replacing a laptop keyboard, the FIRST thing that Bob, a technician, should do is remove:（）A
the battery.B
the memory cover and memory sticks giving access to the screws holding the keyboard in place.C
the top bezel covering the screws holding the keyboard in place.D
the AC power.
考题
单选题Which of the following is a reason why Bob, a technician, should install case fans in the front of acomputer case?（）A
It forces hot air out of the PCB
The fan is easier to remove and cleanC
It forces cooler air into the power supply quicklyD
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单选题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
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Place the computer on the anti-static mat
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VacuumC
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Loop back plugsB
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Move the power supply voltage switch to 220 volts.B
Add an additional fan to help cool the computer.C
Replace the cable that attaches the power supply to the motherboard.D
Replace the power supply.
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