AWS Certified Solutions Architect – Associate (SAA-C02) — Question 699

A company is building an application on Amazon EC2 instances. The application generates temporary transactional data. The application requires access to
Amazon Elastic Block Store (Amazon EBS) data storage that can provide configurable and consistent IOPS.
Which solution meets these requirements?

Answer options

• A. Provision EC2 instances with a Throughput Optimized HDD (st1) EBS root volume and a Cold HDD (sc1) EBS data volume.
• B. Provision EC2 instances with a Throughput Optimized HDD (st1) EBS volume that will serve as the root volume and the data volume.
• C. Provision EC2 instances with a General Purpose SSD (gp3) EBS root volume and a Provisioned IOPS SSD (io2) EBS data volume.
• D. Provision EC2 instances with a General Purpose SSD (gp3) EBS root volume. Configure the application to store its data in an Amazon S3 bucket.

Correct answer: C

Explanation

Provisioned IOPS SSD (io2) EBS volumes are specifically designed to deliver high-performance, consistent, and configurable IOPS for transactional workloads. HDD-based volumes like st1 and sc1 cannot be used as boot volumes and do not offer configurable IOPS. Amazon S3 is an object storage service and does not meet the requirement of providing low-latency block storage with consistent IOPS directly to the EC2 instances.