An administrator receives a call from a user who is unable to receive email. After troubleshooting the administrator is able to resolve the issue and verify that user is able to access email again…

Implementing preventative measures is a valid step but it comes after documentation in the troubleshooting methodology, not immediately after verification.

Closing the issue is the final step and should only occur after documenting the outcome and implementing any preventative measures, not immediately after the fix.

Documenting the outcome is the required next step immediately after verifying the resolution - this creates a record of the problem, steps taken, and solution found, which supports future troubleshooting, knowledge transfer, and organizational learning per the CompTIA troubleshooting model.

Checking other users for the same issue is a step that should have been performed during the problem identification phase, before the resolution was implemented.