Situation
AWS RDS Will Start DB Instance After You Stopped DB Instance Seven Days Automation For That Doesn’t Fall Behind Any Required Maintenance Updates.
Ref
這次考的認證為 AWS DevOps Professional

Why
The OAC Support Some Feature But OAI Don’t Support That.
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All Amazon S3 buckets in all AWS Regions, including opt-in Regions launched after December 2022
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S3 SSE-KMS (Server Side Encrypted With AWS KMS)
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Dynamic Requests( POST, PUT, etc.) To S3

