What does "Sitecore Federated Authentication" allow?

Sitecore Federated Authentication enables the capability to authenticate users across multiple Sitecore instances using a single login. This means that users can access various Sitecore environments seamlessly without the need to log in multiple times for each instance. This is particularly beneficial in organizations that use multiple Sitecore applications or environments, as it streamlines the user experience and enhances the ease of management for user credentials and access controls.

This method not only simplifies the user authentication process but also improves security and administrative efficiency by consolidating user management across different platforms. By leveraging federated authentication, organizations can ensure that users have consistent access rights and are authenticated uniformly, reducing the potential for access issues or security vulnerabilities that may arise from managing separate login systems for each instance.

The other options address different functionalities or capabilities that are not related to user authentication across multiple Sitecore instances, emphasizing that federated authentication specifically focuses on that streamlined user access aspect.