AWS Certified Solutions Architect – Associate (SAA-C02) — Question 496

A company is deploying an application that processes large quantities of data in batches as needed. The company plans to use Amazon EC2 instances for the workload. The network architecture must support a highly scalable solution and prevent groups of nodes from sharing the same underlying hardware.
Which combination of network solutions will meet these requirements? (Choose two.)

Answer options

• A. Create Capacity Reservations for the EC2 instances to run in a placement group.
• B. Run the EC2 instances in a spread placement group.
• C. Run the EC2 instances in a cluster placement group.
• D. Place the EC2 instances in an EC2 Auto Scaling group.
• E. Run the EC2 instances in a partition placement group.

Correct answer: B, E

Explanation

Spread placement groups place each individual EC2 instance on distinct physical racks to ensure they do not share underlying hardware. Partition placement groups isolate groups of instances into logical partitions that do not share physical hardware with other partitions, allowing the system to scale highly while maintaining hardware isolation. Cluster placement groups, by contrast, pack instances close together on the same underlying hardware to achieve low latency, which violates the requirement to avoid shared hardware.