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What is the benefit of comparing with a known working device during troubleshooting?

Answer and explanation

Correct answer: It helps isolate the faulty component

The governing concept is substitution testing and fault isolation. If a known working device is connected to the same computer and works correctly, suspicion shifts toward the original device, cable, or connection. If the replacement also fails, the computer, port, or software may be responsible. Thus option B is correct. This method does not delete files, reinstall the operating system, or change monitor brightness. Testing one variable at a time makes the conclusion more reliable.

Related tags

IctTroubleshootingHardware-TestBasic Computer Operations (Hardware And Software)Basic Computer Operations Hardware And SoftwareIct (Information & Communication Technology) Skills IIct Information Communication Technology Skills IArtificial Intellig

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