AWS Certified Solutions Architect – Associate (SAA-C02) — Question 101

A solutions architect is designing an architecture for a new application that requires low network latency and high network throughput between Amazon EC2 instances. Which component should be included in the architectural design?

Answer options

• A. An Auto Scaling group with Spot Instance types.
• B. A placement group using a cluster placement strategy.
• C. A placement group using a partition placement strategy.
• D. An Auto Scaling group with On-Demand instance types.

Correct answer: B

Explanation

The correct answer is B because a placement group with a cluster placement strategy enables EC2 instances to be physically located close together in the same Availability Zone, which reduces latency and increases throughput. Options A and D focus on instance types and scaling without addressing the network performance requirement, while option C, the partition placement strategy, is designed for high availability rather than maximizing performance between instances.