Your company is running a high-performance computing (HPC) workload that requires extremely low-latency network communication between EC2 instances. Which EC2 feature should you use to ensure instances are physically close to each other in the same availability zone?

Direct Answer (Verified)Reviewed by Sunny (Senior Cloud Engineer)

Correct Answer: Cluster Placement Group

A Cluster Placement Group packs instances close together inside a single Availability Zone, providing the lowest possible network latency and highest throughput for HPC workloads....

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Real Exam ScenarioAmazon EC2

Your company is running a high-performance computing (HPC) workload that requires extremely low-latency network communication between EC2 instances. Which EC2 feature should you use to ensure instances are physically close to each other in the same availability zone?

✓ Correct Answer & ExplanationAmazon EC2

Correct Answer

Cluster Placement Group

Why This Answer Is Correct

A Cluster Placement Group packs instances close together inside a single Availability Zone, providing the lowest possible network latency and highest throughput for HPC workloads.

📚 What This Question Tests

This question evaluates your knowledge of Amazon EC2 — a core concept tested in AWS Certified Solutions Architect – Professional (SAP-C02). Understanding Amazon EC2 is essential for designing scalable, secure, and cost-effective cloud architectures. Mastery of this topic will help you answer scenario-based questions confidently on exam day.