Which authentication mechanism is compatible with a local identity store only?

The authentication mechanism that is compatible with a local identity store only is Basic Authentication. This method operates by requiring users to provide their credentials (username and password) for access. In the context of Tableau, when using a local identity store, user credentials are managed directly on the Tableau Server or Tableau Online, which makes Basic Authentication a suitable choice for integration.

Unlike the other options, which either require an external identity provider (SAML, Kerberos) or operate in a different manner (Windows Automatic Login), Basic Authentication is straightforward and does not have dependencies on external systems. This simplicity aligns perfectly with a local identity store where authentication is handled internally, making it an effective solution for environments looking to manage users directly within Tableau’s own system.