AWS Certified Machine Learning – Specialty — Question 320

A data scientist is designing a repository that will contain many images of vehicles. The repository must scale automatically in size to store new images every day. The repository must support versioning of the images. The data scientist must implement a solution that maintains multiple immediately accessible copies of the data in different AWS Regions.

Which solution will meet these requirements?

Answer options

• A. Amazon S3 with S3 Cross-Region Replication (CRR)
• B. Amazon Elastic Block Store (Amazon EBS) with snapshots that are shared in a secondary Region
• C. Amazon Elastic File System (Amazon EFS) Standard storage that is configured with Regional availability
• D. AWS Storage Gateway Volume Gateway

Correct answer: A

Explanation

Amazon S3 is the ideal solution because it scales automatically, natively supports object versioning, and allows for immediate access in different AWS Regions using S3 Cross-Region Replication (CRR). Other options like Amazon EBS snapshots do not provide immediate active-active access across regions without restoring them first. Amazon EFS and AWS Storage Gateway do not natively support object versioning and automatic cross-region replication with immediate multi-region accessibility.