A company stores critical documents in an Amazon S3 bucket. To meet disaster recovery requirements, the documents must be automatically copied to a different AWS Region. What is the MOST operationally efficient way to achieve this?

Answer options:

Create an AWS Lambda function triggered by S3 events to copy objects to the other Region.

Enable S3 Cross-Region Replication (CRR).

Use AWS DataSync to schedule daily transfers between the buckets.

Configure S3 Lifecycle policies to move the data to the other Region.

How to approach this question

Look for the native S3 feature designed specifically for cross-region copying.

Full Answer

B.Enable S3 Cross-Region Replication (CRR).✓ Correct

Enable S3 Cross-Region Replication (CRR).

Amazon S3 Cross-Region Replication (CRR) is a bucket-level configuration that enables automatic, asynchronous copying of objects across buckets in different AWS Regions. It requires versioning to be enabled on both buckets.

Common mistakes

Choosing Lambda, which works but requires custom code and maintenance.

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