A.From the command prompt， rum shadow.exe /v
B.From the command prompt， run vssadmin.exe query reverts
C.From Computer management， click on the shared folders node and then click on sessions
D.From computer management， click on the shared folders node and then click on open files.

A.Run the dnscmd.exe \\FS1\dfs /restore command on FS1
B.Configure the NTFS permissions for the C：\DFSroots\dfs folder on FS1. Set the create folders/append data special permission to Deny for the Authenticated Users group. Set the full control permission to allow for the administrators group
C.Start the delegate management permissions wizard for the dfs namespace named \\contoso.com\dfs remove all groups that have the permission type explicit except the administrators group
D.Configure the \\fs1\dfs shared folder permissions. Set the permissions for the authenticated users group to reader. set the permissions for the administrations group to co-owner.