The maximum Time Travel retention period for a transient table in Snowflake is 1 day. This is the default and maximum duration for which Snowflake maintains the historical data for transient tables, allowing users to query data as it appeared at any point within the past 24 hours2.

To generate a report listing all Snowflake logins within the last 90 days, the ACCOUNT_USAGE.LOGIN_HISTORY view should be used. This view provides information about login attempts, including successful and unsuccessful logins, and is suitable for security audits4.

The BUILD_STAGE_FILE_URL function generates a Snowflake-hosted file URL to a staged file using the stage name and relative file path as inputs2.

Explanation
Time travel and fail safe are the two continuous data protection features support the recovery of data automatically.
Snowflake provides powerful CDP features for ensuring the maintenance and availability of your historical data (i.e. data that has been changed or deleted):
* Querying, cloning, and restoring historical data in tables, schemas, and databases for up to 90 days through Snowflake Time Travel.
* Disaster recovery of historical data (by Snowflake) through Snowflake Fail-safe.
https://docs.snowflake.com/en/user-guide/data-availability.html