You create 200 new user accounts. The users are located in six different sites. New users report  that they receive the following error message when they try to log on： "The username or  password is incorrect."    
You confirm that the user accounts exist and are enabled. You also confirm that the user name  and password information supplied are correct.    
You need to identify the cause of the failure. You also need to ensure that the new users are able  to log on.    
Which utility should you run（）

You need to identify all failed logon attempts on the domain controllers.    
What should you do（）

A domain controller named DC12 runs critical services. Restructuring of the organizational unit  hierarchy for the domain has been completed and unnecessary objects have been deleted.    
You need to perform an offline defragmentation of the Active Directory database on DC12. You  also need to ensure that the critical services remain online.    
What should you do（）

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（）

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（）

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（）

You have a domain controller that runs Windows Server 2008 R2. The Windows Server Backup  feature is installed on the domain controller.  
You need to perform a non-authoritative restore of the domain controller by using an existing  backup file.    
What should you do（）

Your network consists of a single Active Directory domain. All domain controllers run Windows  Server 2008 R2.    
Auditing is configured to log changes made to the Managed By attribute on group objects in an  organizational unit named OU1.  
You need to log changes made to the Description attribute on all group objects in OU1 only.    
What should you do（）

Your network consists of a single Active Directory domain. All domain controllers run Windows  Server 2008 R2.    
The Audit account management policy setting and Audit directory services access setting are  enabled for the entire domain.    
You need to ensure that changes made to Active Directory objects can be logged. The logged  changes must include the old and new values of any attributes.    
What should you do（）

Your company has file servers located in an organizational unit named Payroll. The file servers  contain payroll files located in a folder named Payroll.    
You create a GPO. You need to track which employees access the Payroll files on the file  servers.  
What should you do（）