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?
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RRitesh
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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
S3 Versioning is the most cost-effective solution for this requirement because:
- Automatic version tracking: When versioning is enabled, Amazon S3 automatically preserves all versions of an object, including overwrites
- Cost-effective: You only pay for the storage of the versions you keep, without additional backup service costs
- Simple restoration: You can easily restore previous versions by copying them back to the current version
- Built-in feature: No additional services or complex configurations required
Why other options are less cost-effective:
- AWS Backup: Involves additional service costs and complexity
- Maintain copy in another S3 bucket: Doubles storage costs and requires manual management
- Cross-region replication: More expensive due to data transfer costs and additional storage
S3 Versioning provides the required protection against accidental overwrites at the lowest cost while maintaining simplicity.
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