AWS Certified SysOps Administrator – Associate (SOA-C03) — Question 15

A company plans to migrate several of its high performance computing (HPC) virtual machines (VMs) to Amazon EC2 instances on AWS. A CloudOps engineer must identify a placement group for this deployment. The strategy must minimize network latency and must maximize network throughput between the HPC VMs.
Which strategy should the CloudOps engineer choose to meet these requirements?

Answer options

• A. Deploy the instances in a cluster placement group in one Availability Zone.
• B. Deploy the instances in a partition placement group in two Availability Zones.
• C. Deploy the instances in a partition placement group in one Availability Zone.
• D. Deploy the instances in a spread placement group in two Availability Zones.

Correct answer: A

Explanation

The correct choice is A because a cluster placement group in a single Availability Zone provides low latency and high throughput by allowing instances to communicate over a high-speed network. Options B and C use partition placement groups, which do not offer the same level of performance due to their design for fault tolerance across multiple Availability Zones. Option D, using a spread placement group, prioritizes resource distribution over performance, which is not suitable for HPC workloads.