A company uses Amazon S3 to store critical business documents. They want to protect against accidental deletion or overwriting of these documents. They also need to ensure that if an entire AWS Region goes down, the documents are still accessible. Which combination of S3 features should they use?

Answer options:

S3 Object Lock and S3 Standard-IA

S3 Versioning and Cross-Region Replication (CRR)

S3 Lifecycle policies and Same-Region Replication (SRR)

S3 MFA Delete and S3 Transfer Acceleration

How to approach this question

Match 'accidental deletion' to Versioning, and 'Region goes down' to Cross-Region Replication.

Full Answer

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

S3 Versioning keeps multiple variants of an object to protect against accidental deletion. Cross-Region Replication automatically copies objects across regions for disaster recovery.

Common mistakes

Choosing SRR (Same-Region) when the requirement explicitly mentions a Region going down.

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