AWS Certified Solutions Architect – ProfessionalContinuously Improve Existing SolutionsHard
A global e-commerce company uses Amazon S3 for storing product images, videos, and customer-uploaded content. They need to regularly audit the integrity and properties of all objects in their S3 buckets, including metadata, ETag, and size, to ensure compliance and detect any unauthorized modifications. The total number of objects exceeds billions, spread across multiple buckets. Manually listing and checking objects is impractical. Which AWS service can provide a complete, auditable list of all objects and their metadata?
- AAmazon S3 Inventory
- BAWS CloudTrail
- CAmazon S3 Analytics
- DAmazon CloudWatch Logs
Show answer & explanationAnswer & explanation
Correct answer: A. Amazon S3 Inventory
Amazon S3 Inventory provides a flat-file list of objects in an S3 bucket, including their metadata (such as ETag, size, storage class, encryption status, etc.). This service is designed for auditing, compliance, and large-scale data management of billions of objects, making manual listing unnecessary and providing the required auditable list.
Why the other options are wrong
- B. CloudTrail logs API activity, showing *who* did *what* *when*, but it does not provide a comprehensive inventory of all object properties at a given point in time.
- C. Amazon S3 Analytics helps analyze storage access patterns to optimize costs and move data to different storage classes, not for generating a complete object inventory.
- D. CloudWatch Logs stores and monitors logs, but it does not provide an inventory of S3 objects and their metadata.
Amazon S3 Inventory
A feature of Amazon S3 that generates a list of objects in a bucket, along with their corresponding metadata, for auditing and data management.
- Provides a flat-file output (CSV, ORC, or Parquet).
- Can be configured for daily or weekly reports.
- Useful for auditing, compliance, and large-scale data management.
Memory trick: S3 Inventory is like a meticulous librarian, listing every book and its details.