CompTIA A+ Core 1 (220-1001) — Question 177

A user is experiencing slow performance on a workstation. A technician investigates and speculates the performance issue is being caused by an excessive number of background services running at startup. The technician troubleshoots the issue, and then finds and disables many services that have been running at startup. Next, the technician informs the user the remediation is complete. The following morning, the technician receives a call from the same user reporting performance is still slow. Which of the following troubleshooting steps did the technician MOST likely fail to complete?

Answer options

• A. Establish a theory of probable cause.
• B. Identity the problem.
• C. Verify full system functionality
• D. Document findings, actions, and outcomes.

Correct answer: A

Explanation

The technician likely failed to establish a theory of probable cause, which is a critical step in troubleshooting to ensure that the underlying issue is accurately identified. Without this step, the technician may have addressed symptoms rather than the root cause. The other options, while important, do not directly relate to the failure to develop a theory about the performance issue.