What does OIDC support in terms of authentication?

OpenID Connect (OIDC) supports federated login via identity providers, which is a major aspect of modern authentication practices. This protocol builds on the OAuth 2.0 framework, enabling applications to authenticate users through various identity providers (IdPs) like Google, Facebook, or enterprise solutions. This means that instead of relying on direct credential management within an application, users can leverage existing accounts they have with those identity providers for seamless access.

Federated login enhances user experience by reducing the number of credentials users must manage and allows organizations to implement robust security measures that come from trusted identity providers. Additionally, it enables a Single Sign-On (SSO) experience, allowing users to access multiple applications with a single authentication event.

The other choices do not align with the capabilities of OIDC. For example, session-based logins without identity providers, basic authentication methods exclusively, and only local user authentication do not encompass the federated and user-friendly authentication model that OIDC promotes. Hence, the emphasis on federated login via identity providers aligns perfectly with the functional scope of OIDC.