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Basic Troubleshooting Techniques

Solving hardware and software issues.

Applying structured and effective troubleshooting techniques to identify, diagnose, and solve various hardware and software issues within a computer system.
5 minutes 5 Questions

Basic troubleshooting techniques in CompTIA A+ certification focus on systematic approaches to identify and resolve computer problems. The process typically begins with information gathering - asking users questions about what happened, when the issue started, and any recent changes to the system. …

Concepts covered: Establish a Theory of Probable Cause, Reproduce the Problem, Implement the Solution and Verify Functionality, Document Findings, Actions, and Outcomes, Perform Root Cause Analysis, Documenting Findings and Outcomes, Escalation and Seeking Assistance, Test the Theory to Determine Cause, Communication with the Customer, Safety Precautions, Identify the Problem, Escalate to Higher-level Support, Establish a Plan of Action to Resolve the Problem, Determine if the Issue is Hardware or Software Related, Maintaining Tools and Equipment

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CompTIA A+ - Basic Troubleshooting Techniques Example Questions

Test your knowledge of Basic Troubleshooting Techniques

Question 1

A technician upgraded RAM in a client's computer, but it is not being detected. What should the technician do next?

Correct Answer: Verify that the RAM is properly seated.

The best answer is to verify that the RAM is properly seated. When installing new RAM, it is important to ensure that the RAM modules are correctly inserted into the slots and securely locked in place. If the RAM is not properly seated, the computer may not detect it. The other options, such as rebooting the computer multiple times, installing antivirus software, or replacing the motherboard, do not address the root cause of the issue, which is likely related to the physical installation of the RAM.

Question 2

A client reports that their computer does not turn on. The technician notices that the power supply fan does not spin when the power button is pressed. What is the most appropriate next step?

Correct Answer: Test the power supply with a multimeter or PSU tester.

The most appropriate next step is to test the power supply with a multimeter or PSU tester. This will help determine if the power supply is faulty and needs to be replaced. Jump-starting the computer with a screwdriver is not a safe or reliable method to troubleshoot the issue. Replacing the power supply before testing it may be unnecessary if the issue lies elsewhere. Reinstalling the operating system will not resolve a hardware issue like a faulty power supply.

Question 3

A technician working on a power supply needs to ensure safety precautions are in place. Which of the following is the best option?

Correct Answer: Unplug the computer and discharge the capacitors.

Safety is paramount when working on power supplies. The best precaution is to unplug the computer, fully cutting off power to the system, and then discharge any stored charge in the capacitors. This ensures there is no risk of electric shock. Wearing a metal bracelet does not provide adequate protection. Leaving the power supply plugged in maintains a potentially dangerous live current. Using a non-insulated tool risks causing a short circuit or shock. Therefore, unplugging the system and discharging capacitors is the safest approach.

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