AWS Certified Solutions Architect - Professional SAP-C02 — Topic 1 Question 235

Question

A company has built a high performance computing (HPC) cluster in AWS for a tightly coupled workload that generates a large number of shared files stored in Amazon EFS. The cluster was performing well when the number of Amazon EC2 instances in the cluster was 100. However, when the company increased the cluster size to 1.000 EC2 instances, overall performance was well below expectations. Which collection of design choices should a solutions architect make to achieve the maximum performance from the HPC cluster? (Choose three.)

Accepted Answer

Correct answer: A, C, F. The correct answer is A, C, F. Option A: Ensure the HPC cluster is launched within a single Availability Zone. Option C: Select EC2 instance types with an Elastic Fabric Adapter (EFA) enabled. Option F: Replace Amazon EFS with Amazon FSx for Lustre. Amazon EC2 provides resizable virtual servers when you need full control of the operating system. Amazon EFS is a shared, elastic NFS file system that multiple instances can mount concurrently across AZs. Amazon FSx for Lustre delivers high-performance file storage for compute-intensive workloads.

AWS Certified Solutions Architect - Professional SAP-C02 — Question 235