Which of the following is the LAST step an administrator should take when troubleshooting an issue?

Identifying changes to the system is an early step in troubleshooting, often done during the information gathering phase to understand potential causes.

Replicating the problem is an early step used to confirm the issue and gather more data, not the last step in the process.

Verifying full system functionality is the last critical step in troubleshooting, ensuring that the original problem is resolved, no new problems were created, and the system operates as expected after a solution has been implemented. This comprehensive verification confirms the success of the troubleshooting efforts and restores the system to a stable state.

Implementing the solution is an action taken after identifying the root cause, but before the final verification of the system's overall health.