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单选题
A technician suspects the AC voltage into a PC power supply is bad. Which of the following toolswould MOST likely be used to confirm the diagnosis?（）
A
Multimeter
B
Oscilloscope
C
Cable tester
D
Power supply tester
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单选题A technician is installing a new power supply into a computer. One of the power supply connectors that the technician needs to connect to the motherboard is square and contains 4-pins. This connector is known as which of the following?（）A
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单选题A technician suspects the AC voltage into a PC power supply is bad. Which of the following toolswould MOST likely be used to confirm the diagnosis?（）A
MultimeterB
OscilloscopeC
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考题
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Battery needs to be replacedB
Light switch is turned offC
Smart cable is disconnectedD
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