A computer is failing to boot. Which of the following tools would be used FIRST in troubleshooting? （）A、Time Domain Reflectometer (TDR)B、OscilloscopeC、Power supply testerD、Spectrum analyzer
A computer is failing to boot. Which of the following tools would be used FIRST in troubleshooting? （）
- A、Time Domain Reflectometer (TDR)
- B、Oscilloscope
- C、Power supply tester
- D、Spectrum analyzer
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