Which term describes a system that manages user identities across multiple platforms?

• A. Federated Identity Management
• B. Library Hub
• C. Single Sign-On
• D. Remote Access Solutions

Answer: (A)

Federated identity management describes a system that handles and vouches for user identities across multiple platforms or domains. It creates trust between identity providers (who verify who you are) and service providers (who grant you access to resources), so a single verified identity can be used to access different services without creating separate credentials for each one. This setup makes cross-domain access possible through standardized protocols that exchange identity assertions online, enabling a seamless user experience across diverse apps and sites.

Single sign-on is a capability that often arises from federated identity management, allowing one successful authentication to grant access to multiple services, but it’s a feature rather than the whole system of managing identities across many platforms. The other options don’t describe this overarching framework for identity management across domains.