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Hello wail-el-edghiri,
Thank you for taking the time to raise this and for the detailed explanation of your concern — you were absolutely right to question the original wording.
We’ve reviewed the item and updated the question, Option 2, and the explanation to clearly define the roles of each AWS service involved and remove any ambiguity. The revised version now explicitly states:
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Which Lambda function is triggered by Amazon EventBridge (scheduled snapshot creation and cross-Region snapshot copy in the primary Region),
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Which Lambda function is triggered by AWS Health and Amazon RDS events via Amazon SNS (database restore in the backup Region during failover),
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And how AWS Step Functions are used strictly for orchestration, providing sequencing, retries, and error handling across the workflow rather than acting as a trigger.
These updates align with the latest AWS documentation for Amazon RDS cross-Region snapshot copy and restore workflows, and better reflect how snapshot-based disaster recovery improves RTO and RPO compared to a manual recovery process.
Your understanding was correct, especially regarding the need for the restore logic to run in the backup Region and the role of Step Functions as an orchestration layer. We appreciate you pointing this out, as it helped us improve the clarity and accuracy of the question for all learners.
If you have any further questions or need additional clarification, feel free to reach out anytime 🙂
Cheers,
Irene @ Tutorials Dojo
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