Your network contains an Active Directory domain. All domain controllers run Windows Server  2008. The functional level of the domain is Windows Server 2003. All client computers run  Windows 7.  
You install Windows Server 2008 R2 on a server named Server1. You need to perform an offline  domain join of Server1.    
Which two actions should you perform（）

单项选择题Your company has a main office and a branch office.     The network contains a single Active Directory domain. The main office contains a domain  controller named DC1.     You need to install a domain controller in the branch office by using an offline copy of the Active  Directory database.     What should you do first（）

A.From the Ntdsutil tool， create an IFM media set.
B.From the command prompt， run djoin.exe /loadfile.
C.From Windows Server Backup， perform a system state backup.
D.From Windows PowerShell， run the get-ADDomainController cmdlet.

单项选择题You have an enterprise root certification authority （CA） that runs Windows Server 2008 R2.     You need to ensure that you can recover the private key of a certificate issued to a Web server.     What should you do（）

A.From the ca， run the Get-PfxCertificate cmdlet.
B.From the Web server， run the Get-PfxCertificate cmdlet.
C.From the ca， run the certutil.exe tool and specify the -exportpfx parameter.
D.From the Web server， run the certutil.exe tool and specify the -exportpfx parameter.

单项选择题You need to back up all of the group policies in a domain.     The solution must minimize the size of the backup.     What should you use（）

A.the Add-WBSystemState cmdlet
B.the Group Policy Management console
C.the Wbadmin tool
D.the Windows Server Backup feature

单项选择题Your network contains an Active Directory domain.     You need to restore a deleted computer account from the Active Directory Recycle Bin.     What should you do（）

A.From the command prompt， run recover.exe.
B.From the command prompt， run ntdsutil.exe.
C.From the Active Directory Module for Windows PowerShell， run the Restore-Computer cmdlet.
D.From the Active Directory Module for Windows PowerShell， run the Restore-ADObject cmdlet.

单项选择题YournetworkcontainsanActiveDirectorydomain.ThedomaincontainstwodomaincontrollersnamedDC1andDC2. YouperformafullbackupofthedomaincontrollerseverynightbyusingWindowsServerBackup. YouupdateascriptintheSYSVOLfolder. Youdiscoverthatthenewscriptfailstorunproperly.YouneedtorestorethepreviousversionofthescriptintheSYSVOLfolder.Thesolutionmustminimizetheamountoftimerequiredtorestorethescript. Whatshouldyoudofirst（）

A.Run the Restore-ADObject cmdlet.
B.Restore the system state to its original location.
C.Restore the system state to an alternate location.
D.Attach the VHD file created by Windows Server Backup