AWS Certified SysOps Administrator – Associate — Question 303

A company has a high performance computing (HPC) application that runs on Amazon EC2 instances. The application requires minimum latency and maximum network throughput between nodes.

How should a SysOps administrator deploy the EC2 instances to meet these requirements?

Answer options

• A. Use a cluster placement group in a single Availability Zone.
• B. Use a cluster placement group across multiple Availability Zones.
• C. Use a partition placement group in a single Availability Zone.
• D. Use a partition placement group across multiple Availability Zones.

Correct answer: A

Explanation

A cluster placement group packs instances close together inside a single Availability Zone, which enables workloads to achieve the low-latency and high-throughput network performance required for HPC applications. Partition placement groups are designed to isolate workloads across different logical partitions to reduce the risk of simultaneous hardware failures, rather than maximizing network performance. Furthermore, cluster placement groups cannot span multiple Availability Zones, making option A the only correct and viable choice.