A hosting company offers Backup-as-a-Service to their customers. The customers who decide to sign up for the service are provided with an Ethernet link to an EMC Data Domain system where the backups…

A hosting company offers Backup-as-a-Service to their customers. The customers who decide to sign up for the service are provided with an Ethernet link to an EMC Data Domain system where the backups are stored. Optionally, customers can choose to have their backup data replicated to a secondary location. Which kind of replication should be configured?