AWS Certified Solutions Architect – Associate (SAA-C03) — Question 611

A weather forecasting company needs to process hundreds of gigabytes of data with sub-millisecond latency. The company has a high performance computing (HPC) environment in its data center and wants to expand its forecasting capabilities.

A solutions architect must identify a highly available cloud storage solution that can handle large amounts of sustained throughput. Files that are stored in the solution should be accessible to thousands of compute instances that will simultaneously access and process the entire dataset.

What should the solutions architect do to meet these requirements?

Answer options

• A. Use Amazon FSx for Lustre scratch file systems.
• B. Use Amazon FSx for Lustre persistent file systems.
• C. Use Amazon Elastic File System (Amazon EFS) with Bursting Throughput mode.
• D. Use Amazon Elastic File System (Amazon EFS) with Provisioned Throughput mode.

Correct answer: B

Explanation

Amazon FSx for Lustre is optimized for high-performance computing (HPC) workloads, offering sub-millisecond latencies and high throughput for concurrent access by thousands of compute instances. A persistent file system deployment ensures high availability by automatically replicating data and replacing failed components. In contrast, scratch file systems are not highly available, and Amazon EFS does not meet the sub-millisecond latency requirements of this HPC workload.