AWS Certified Solutions Architect – Associate (SAA-C02) — Question 514

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, serverless file system that can be mounted concurrently by multiple Amazon EC2 instances while offering built-in regional redundancy. Amazon EBS volumes are typically designed for single-instance attachment and do not support simple, shared multi-instance access for standard file systems, while Amazon S3 Glacier Deep Archive is for cold storage archiving and is not suitable for active file sharing. AWS Backup is a backup orchestration service, not a primary shared file storage solution.