AWS Certified Solutions Architect – Associate (SAA-C02) — Question 207

A company is deploying a multi-instance application within AWS that requires minimal latency between the instances.
What should a solutions architect recommend?

Answer options

• A. Use an Auto Scaling group with a cluster placement group.
• B. Use an Auto Scaling group with single Availability Zone in the same AWS Region.
• C. Use an Auto Scaling group with multiple Availability Zones in the same AWS Region.
• D. Use a Network Load Balancer with multiple Amazon EC2 Dedicated Hosts as the targets.

Correct answer: A

Explanation

The correct answer, A, is optimal as using a cluster placement group ensures low latency and high throughput between instances by placing them physically close together. Option B, while in a single Availability Zone, does not provide the same level of latency reduction as clustering. Option C introduces multiple Availability Zones, which can increase latency due to the distance between zones. Option D focuses on load balancing rather than minimizing latency between instances.