Question
A company is designing a multi-account structure for its development teams. The company is using AWS Organizations and AWS IAM Identity Center (AWS Single Sign-On). The company must implement a solution so that the development teams can use only specific AWS Regions and so that each AWS account allows access to only specific AWS services.
Which solution will meet these requirements with the LEAST operational overhead?
- A. Use IAM Identity Center to set up service-linked roles with IAM policy statements that include the Condition, Resource, and NotAction elements to allow access to only the Regions and services that are needed.
- B. Deactivate AWS Security Token Service (AWS STS) in Regions that the developers are not allowed to use.
- C. Create SCPs that include the Condition, Resource, and NotAction elements to allow access to only the Regions and services that are needed. Correct
- D. For each AWS account, create tailored identity-based policies for IAM Identity Center. Use statements that include the Condition, Resource, and NotAction elements to allow access to only the Regions and services that are needed.
Explanation
The correct answer is C because Service Control Policies (SCPs) can be used to restrict access to specific AWS Regions and services across all accounts in an organization with minimal operational overhead. SCPs apply at the organizational unit level, making them ideal for controlling access uniformly without needing to manage individual policies per account or user.
