Once you’ve connected your data in Data Studio, how often do you need to manually provide your data set credentials again?

In Data Studio, once you've successfully connected a data source and provided your credentials, the connection persists. You generally do not need to re-enter your credentials every time you load a report. The connection remains active unless there's a specific reason for it to be broken, such as revoking access to the data source from Data Studio or changing your password for the underlying data source. Therefore, "Only if you’ve revoked access" is the correct answer. The other options are incorrect because Data Studio is designed for persistent connections, not requiring frequent re-authentication under normal circumstances.