100-140 Question 48
Single answerA user reports that their desktop computer is not powering on, even though it is plugged into a power outlet. As a support technician, what is the most appropriate first step to troubleshoot this hardware issue?
- A
Check if the power cable is securely connected to both the computer and the power outlet.
- B
Replace the motherboard, as it is likely the source of the issue.
- C
Reset the operating system to its default configuration.
- D
Open the computer case to inspect the internal components for damage.
Show answer and explanation
Correct answer: A
Explanation
When troubleshooting hardware issues, it is important to start with the simplest and least invasive steps. Checking the power cable connection is a critical first step because it is a common and easily resolvable cause of power issues. More complex or invasive steps, such as replacing components or inspecting internal hardware, should only be undertaken after simpler causes have been ruled out.
- A. Correct.
Ensuring the power cable is securely connected is the most logical and non-invasive first step. Many power issues are caused by loose or disconnected cables.
- B. Incorrect.
Replacing the motherboard should not be the first step, as it is invasive, costly, and does not address simpler potential causes of the issue.
- C. Incorrect.
Resetting the operating system is not relevant when the computer does not power on, as the issue is hardware-related, not software-related.
- D. Incorrect.
Opening the computer case is premature at this stage. Basic external checks should be completed before inspecting internal components.