AWS Certified Solutions Architect – Professional — Question 589

Which EC2 functionality allows the user to place the Cluster Compute instances in clusters?

Answer options

• A. Cluster group
• B. Cluster security group
• C. GPU units
• D. Cluster placement group

Correct answer: D

Explanation

A cluster placement group is an Amazon EC2 configuration that packs instances close together inside an Availability Zone to achieve low-latency and high-throughput network performance. Options such as cluster groups and cluster security groups are not valid EC2 features, while GPU units represent hardware resources rather than instance placement strategies.