How to tell when SSO is being used?

I know UiPath uses SSO to handle authorization. But how to tell if a IS Connector uses it? Are each of the connectors documented somewhere?

@Terry_Marr

Integration services work on api …so basically depending on the api support for each authentication methods we can know the authentication

Coming to docs…almost all connectors can be search on docs.uipath.com for ducumentation…

Cheers