The correct answers are C and D based on Snowflake's official documentation for federated authentication SSO workflows. Federated authentication specifically enables logging into Snowflake (C) and logging out of Snowflake (D), as well as system timeout due to inactivity. While option B (Initiating user sessions) might seem related, it's not explicitly listed as a supported SSO workflow activity in the official documentation. The community discussion shows strong consensus for CD with the highest upvoted comments (6 and 4 upvotes) referencing the official documentation, while the comment suggesting BC has only 1 upvote and contradicts the documented workflows.