AWS Certified Solutions Architect – Associate (SAA-C03) — Question 420

A company uses high block storage capacity to runs its workloads on premises. The company's daily peak input and output transactions per second are not more than 15,000 IOPS. The company wants to migrate the workloads to Amazon EC2 and to provision disk performance independent of storage capacity.

Which Amazon Elastic Block Store (Amazon EBS) volume type will meet these requirements MOST cost-effectively?

Answer options

• A. GP2 volume type
• B. io2 volume type
• C. GP3 volume type
• D. io1 volume type

Correct answer: C

Explanation

General Purpose SSD (gp3) volumes allow customers to provision IOPS (up to 16,000) and throughput independently of storage capacity, making them the most cost-effective choice for this workload. In contrast, gp2 volumes link performance directly to storage size, which would require purchasing excess storage to achieve 15,000 IOPS. While io1 and io2 also allow independent performance scaling, they are significantly more expensive than gp3.