Ans. SharePoint Server 2010 provides several new features that provide a granular level of backup for various components of site content. This includes content at the site, subsite, and list level.
Through Central Administration(Granular level Back-up) a SharePoint Administrator can configure a backup of a subsite or list. An Administrator can choose a site and a specific list to be exported.The administrators can also choose to export security and select the different versions that will be exported with the list.