AWS Certified SysOps Administrator – Associate — Question 221

A company runs a workload on an Amazon EC2 instance. The workload needs a temporary cache that contains data that changes frequently. The workload does not need to retain the cache across instance restarts.

Which storage option will provide the HIGHEST performance for the cache?

Answer options

• A. General Purpose SSD (gp3) Amazon Elastic Block Store (Amazon EBS) volume
• B. Provisioned IOPS SSD (io2) Amazon Elastic Block Store (Amazon EBS) volume
• C. Throughput Optimized HDD (st1) Amazon Elastic Block Store (Amazon EBS) volume
• D. EC2 instance store

Correct answer: D

Explanation

The EC2 instance store provides the highest performance for temporary caching due to its ability to deliver very low latency and high throughput. Unlike the EBS volumes listed, which are designed for durability and persistence, the instance store is ephemeral and optimized for speed, making it ideal for data that changes frequently and does not need to be retained after a restart.