In a change management policy, which procedural element ensures that if a new software patch causes unexpected issues, the system can be quickly returned to its last known good configuration?
Configuration baseline creation
Separation of duties
Version labeling of software
Documented rollback plan
A rollback plan describes the steps required to remove or disable a newly implemented change and restore the previous stable configuration. This safeguards availability by letting administrators reverse problematic patches or updates. Creating configuration baselines, enforcing separation of duties, and adding version labels are important practices, but none of them specifically provide the step-by-step mechanism to undo a faulty change.
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