AWS Certified Solutions Architect – Associate (SAA-C03) — Question 576

A company is deploying an application that processes large quantities of data in parallel. The company plans to use Amazon EC2 instances for the workload. The network architecture must be configurable to prevent groups of nodes from sharing the same underlying hardware.

Which networking solution meets these requirements?

Answer options

• A. Run the EC2 instances in a spread placement group.
• B. Group the EC2 instances in separate accounts.
• C. Configure the EC2 instances with dedicated tenancy.
• D. Configure the EC2 instances with shared tenancy.

Correct answer: A

Explanation

A spread placement group strictly places each individual EC2 instance on distinct physical hardware racks to prevent simultaneous infrastructure failures. While dedicated tenancy ensures your instances run on hardware dedicated to a single customer, it does not prevent multiple instances within that tenancy from sharing the same physical host. Shared tenancy and multi-account strategies do not guarantee the specific rack-level separation required for these parallel nodes.