The managed relational database service provides automated backups that include daily snapshots and capture transaction logs, enabling point-in-time recovery. This service allows the restoration of the database to any moment up to the last five minutes within the retention period. Exporting snapshots to Amazon S3 is generally for long-term archival, not fast point-in-time operational recovery. A Multi-AZ deployment main purpose is high availability through synchronous replication and does not provide point-in-time recovery on its own. Read replicas primarily serve the purpose of read scaling and not for point-in-time backups or fast operational recovery.