Answer:
Data Protection Manager provides the ability to backup an entire sharepoint farm including the SQL Server databases, metadata, farm configuration files and indexes for federated search. Bakups can be automated to occur upto 4 times an hour based on the need. DPM starts by backing up a baseline copy of the sharepoint environment. It then there onwards performs full backups on regular basis using the sharepoint VSS writer and underlying component VSS writers to identify blocks or fragments of the farm and content databases which have changed. It is designed for sharepoint administrators and provides them with wizards and workflows to help protect the data. It represents data to be protected in the same context as the user accesses it.