Domain 2.5: Performance — AWS SAP-C02 Practice Question 25

How to approach this question

Combine the placement strategy for low latency (Cluster) with the network adapter designed for HPC (EFA).

Full Answer

A.Deploy the instances in a Cluster Placement Group and attach Elastic Fabric Adapters (EFA) to the instances.✓ Correct

For tightly coupled HPC workloads, you should use a Cluster Placement Group to ensure instances are physically located close to each other in the data center, minimizing network latency. Additionally, using an Elastic Fabric Adapter (EFA) provides OS-bypass capabilities, significantly reducing latency and increasing throughput compared to standard network interfaces.

Common mistakes

Confusing ENA (standard high performance) with EFA (HPC specific OS-bypass).

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Full Answer

Common mistakes

Practice the full AWS Solutions Architect Professional SAP-C02 Practice Exam 5

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