单项选择题
A.Start the domain controller in the Directory Services restore mode. Run the Defrag utility.
B.Start the domain controller in the Directory Services restore mode. Run the Ntdsutil utility.
C.Stop the Domain Controller service in the Services （local） Microsoft Management Console （MMC）. Run the Defrag
D.Stop the Domain Controller service in the Services （local） Microsoft Management Console （MMC）. Run the Ntdsutil
单项选择题 You network consists of a single Active Directory domain. All domain controllers run Windows Server 2008 R2. You need to reset the Directory Services Restore Mode （DSRM） password on a domain controller. What tool should you use（）
单项选择题 Your company has a domain controller server that runs the Windows Server 2008 R2 operating system. The server is a backup server. The server has a single 500-GB hard disk that has three partitions for the operating system， applications， and data. You perform daily backups of the server. The hard disk fails. You replace the hard disk with a new hard disk of the same capacity. You restart the computer on the installation media. You select the Repair your computer option. You need to restore the operating system and all files. What should you do（）
单项选择题 Your company has an Active Directory domain that runs Windows Server 2008 R2. The Sales OU contains an OU for Computers， an OU for Groups， and an OU for Users. You perform nightly backups. An administrator deletes the Groups OU. You need to restore the Groups OU without affecting users and computers in the Sales OU. What should you do（）