Your network contains a server that has Microsoft SharePoint Foundation 2010 installed.
You need to ensure that a user named User1 can use Central Administration to back up SharePoint site collections.
The solution must minimize the number of permissions assigned to User1.
To which group should you add User1?

A.
local Administrators

B.
local Backup Operators

C.
SharePoint Delegated Administrators

D.
SharePoint Farm Administrators

Explanation:
Group memberships required to run backup and restore operations in Central Administration
You must ensure that all user accounts that will be backing up or restoring your farm and farm components by using Central Administration have the group memberships that are described in the following table.
Required group memberships
Farm component
Member of Administrators group on the local computer
Member of Farm Administrators SharePoint group
Farm
Yes
No
Content Database
Yes
No
Site Collection
No
Yes
Site, list, document library
No
Yes
Source: http://technet.microsoft.com/en-us/library/ee748626.aspx