AWS Certified Data Analytics Specialty 2021 - Hands-On! - Amazon Web Services Security Token Service (AWS STS) and Cross

The video tutorial explains the Security Token Service (STS) in AWS, which provides temporary and limited access to resources. It covers the use of STS for cross-account access and federation, including integration with Active Directory and third-party providers like Cognito. The tutorial also details the Assume Role API, which allows users to impersonate IAM roles with temporary credentials. The session concludes with a summary and a preview of the next lecture on federation.

Describe how STS can be used for federation with third-party providers.

What is the purpose of the assume role API in STS?