Which AWS service provides automated backups of data by default?

Explanations:

Amazon S3 provides versioning and replication options, but it does not create automated backups of data by default. Users must enable versioning or set up replication manually to protect data.

Amazon Aurora offers automated backups of your database cluster, with continuous backup to Amazon S3. Backups are taken automatically and can be restored at any point within the retention period.

Amazon ElastiCache for Memcached does not provide automated backups. Users must manage backups manually by implementing their own backup and restore strategies.

Amazon Elastic File System (EFS) does not provide automated backups by default. Users can set up lifecycle policies to manage data, but they must configure backup solutions like AWS Backup for EFS data protection.