MLS-C01 Question #353: Real Exam Question with Answer & Explanation

Question

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?

Options

• AAmazon S3 with S3 Cross-Region Replication (CRR)
• BAmazon Elastic Block Store (Amazon EBS) with snapshots that are shared in a secondary
• CAmazon Elastic File System (Amazon EFS) Standard storage that is configured with Regional
• DAWS Storage Gateway Volume Gateway

Explanation

Amazon S3 with S3 Cross-Region Replication is the optimal solution for a scalable, versioned image repository requiring multiple immediately accessible copies of data across different AWS Regions.

Common mistakes.

• B. Amazon EBS is block storage tied to an EC2 instance and does not scale automatically as a standalone repository for images; snapshots are point-in-time backups, not immediately accessible replicated copies for a repository across regions.
• C. Amazon EFS is a regional file system that scales automatically, but it does not inherently offer built-in object versioning or direct automatic cross-region replication of files to provide immediately accessible copies in different regions.
• D. AWS Storage Gateway Volume Gateway is primarily used to connect on-premises applications to cloud storage and is not designed as a scalable, versioned, multi-region cloud-native repository for new images.

Concept tested. Scalable, versioned, multi-region object storage

Reference. https://aws.amazon.com/s3/features/

No community discussion yet for this question.