Your organization is migrating a high-performance database cluster that requires extremely low-latency network communication and high throughput (up to 100 Gbps) between nodes. Which EC2 instance feature and VPC configuration should you use?

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

Correct Answer: Elastic Fabric Adapter (EFA) and a Cluster Placement Group

EFA is a network interface for Amazon EC2 instances that enables customers to run applications requiring high levels of inter-node communications at scale, and Cluster Placement Gr...

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Real Exam ScenarioAmazon EC2

Your organization is migrating a high-performance database cluster that requires extremely low-latency network communication and high throughput (up to 100 Gbps) between nodes. Which EC2 instance feature and VPC configuration should you use?

✓ Correct Answer & ExplanationAmazon EC2

Correct Answer

Elastic Fabric Adapter (EFA) and a Cluster Placement Group

Why This Answer Is Correct

EFA is a network interface for Amazon EC2 instances that enables customers to run applications requiring high levels of inter-node communications at scale, and Cluster Placement Groups ensure physical proximity.

📚 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.