AWS Certified Solutions Architect – Associate (SAA-C03) — Question 227

A solutions architect needs to design a system to store client case files. The files are core company assets and are important. The number of files will grow over time.

The files must be simultaneously accessible from multiple application servers that run on Amazon EC2 instances. The solution must have built-in redundancy.

Which solution meets these requirements?

Answer options

• A. Amazon Elastic File System (Amazon EFS)
• B. Amazon Elastic Block Store (Amazon EBS)
• C. Amazon S3 Glacier Deep Archive
• D. AWS Backup

Correct answer: A

Explanation

Amazon Elastic File System (Amazon EFS) is the correct choice because it provides a scalable file storage solution that can be accessed concurrently by multiple EC2 instances, along with built-in redundancy. In contrast, Amazon Elastic Block Store (Amazon EBS) is designed for single-instance attachment, which does not meet the requirement for simultaneous access, while Amazon S3 Glacier Deep Archive is intended for long-term archival and not for active file access. AWS Backup is a service for backing up data rather than a storage solution.