AWS Certified Cloud Practitioner
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A company needs the ability to restore objects in an Amazon S3 bucket if the objects are accidentally overwritten. Which solution will meet this requirement MOST cost-effectively?
Real Exam
Community
RRitesh
A
Back up the objects by using AWS Backup
B
Enable S3 Versioning
C
Maintain a copy of the objects in another S3 bucket
D
Replicate the objects to different AWS Regions
Explanation:
Explanation
Enable S3 Versioning is the most cost-effective solution because:
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S3 Versioning automatically preserves all versions of an object in the same bucket
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When an object is overwritten, the previous version is retained and can be restored
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Cost-effective: Only pay for storage of additional versions (no additional backup service costs)
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Simple setup: Just enable versioning on the S3 bucket
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Built-in feature: No need for complex backup configurations or cross-region replication
Why other options are less cost-effective:
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AWS Backup: Involves additional service costs and complexity
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Copy to another S3 bucket: Doubles storage costs and requires manual management
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Cross-region replication: Higher costs due to data transfer and storage in multiple regions
S3 Versioning provides the required restore capability at the lowest cost while maintaining simplicity.
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