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On the left of the diagram is a server computer icon to which two cylinder database icons are attached. To the right of each cylinder is a blue box labeled "Backup Module." To the left of the top cylinder is the text "Oracle 11g Protected Database." To the left of the bottom cylinder is the text "Oracle 12c Protected database." Both backup module boxes point right toward a server computer icon labeled "Recovery Appliance." Attached to this icon is a blue box labeled "Backup Module." The backup module icon points right to a server icon labeled "Recovery Appliance." The arrow is labeled "Replication." The central Recovery Appliance icon points downward to a stack of tapes labeled "Tape Library." The arrow is labeled "Backups."