Q31 — AWS SOA-C02 Ch.1

Question 31 of 100 | ← Chapter 1

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?

• 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. Use a cluster placement group in a single Availability Zone.

Explanation

AWS的放置组策略中，集群放置组设计用于需要低延迟和高吞吐量的场景。根据AWS官方文档，集群放置组要求所有实例必须位于同一可用区，以确保物理位置接近，从而优化网络性能。跨可用区部署（选项B、D）会因物理距离增加导致延迟上升。分区放置组（选项C、D）适用于需要硬件隔离的分布式应用，而非网络密集型场景。因此，选择同一可用区内的集群放置组（选项A）最符合HPC应用的需求。