Registering Tableau Server as a client with the OpenID Connect provider and obtaining client credentials For secure and efficient authentication using OpenID Connect, it is essential to register the Tableau Server as a client with the OpenID Connect provider. This involves obtaining client credentials (client ID and client secret), which are used to authenticate requests from Tableau Server to the provider, ensuring secure communication and identity verification. Option A is incorrect because accepting all OpenID Connect providers without validation poses significant security risks. Option C is incorrect as setting up a direct database connection to the provider's database is not a standard or secure practice for configuring OpenID Connect. Option D is incorrect because disabling all other forms of authentication is not necessary and could limit flexibility and accessibility for users.