AWS Certified Solutions Architect – Associate (SAA-C03) — Question 457

A company is designing a containerized application that will use Amazon Elastic Container Service (Amazon ECS). The application needs to access a shared file system that is highly durable and can recover data to another AWS Region with a recovery point objective (RPO) of 8 hours. The file system needs to provide a mount target m each Availability Zone within a Region.

A solutions architect wants to use AWS Backup to manage the replication to another Region.

Which solution will meet these requirements?

Answer options

• A. Amazon FSx for Windows File Server with a Multi-AZ deployment
• B. Amazon FSx for NetApp ONTAP with a Multi-AZ deployment
• C. Amazon Elastic File System (Amazon EFS) with the Standard storage class
• D. Amazon FSx for OpenZFS

Correct answer: C

Explanation

Amazon Elastic File System (Amazon EFS) is the ideal choice for ECS container storage because it natively supports mount targets in each Availability Zone within a Region, ensuring high availability and durability. AWS Backup can easily manage cross-region replication for Amazon EFS, allowing the solution to comfortably meet the 8-hour RPO requirement. Other FSx options either do not provide the same native ECS integration or do not support mount targets in every AZ natively like EFS does.