During an overnight maintenance window, a project manager must confirm that a newly installed database patch did not disrupt critical production services. Which of the following actions should the project manager perform to verify that the change was successful and the system remains fully operational?
Execute tests to ensure the system operates as expected.
Confirm that all users have been notified about the change.
Update the project schedule to reflect the change.
Running validation tests-such as functional, regression, or smoke tests-after the change confirms that the system behaves as expected and that no new issues were introduced. Notifying users, updating schedules, or reviewing the change with senior management are important administrative follow-up tasks, but they do not prove technical success of the change.
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