Subdomain 1.3: Change management
1.A systems administrator applies a critical security patch to a production server. Shortly after, the primary customer-facing application crashes. The administrator needs to restore service as quickly as possible. Which of the following change management components should the administrator execute?
- A.Risk assessment
- B.Rollback plan
- C.Version control commit
- D.Incident response plan
Show answer & explanation
Correct answer: B — Rollback plan
- A. A risk assessment is typically conducted before a change is implemented to evaluate potential impacts and the likelihood of issues. It is a proactive planning step and does not provide a mechanism for service restoration after an application has already crashed.
- B. A rollback plan is a predefined strategy used to revert a system to its previous known-good state if a change or patch fails. Executing this plan is the fastest and most appropriate way to restore service in this scenario.
- C. Version control commits are used to record and track history of code or configuration changes. While essential for tracking modifications over time, they are not the primary change management component used to restore an application in a production emergency.
- D. While an incident response plan (IRP) is used to handle security breaches or significant outages, it is a broad framework for coordination. The specific change management component designed to undo a failed patch and restore functionality is the rollback plan.