Your network consists of a single Active Directory domain. All domain controllers run Windows  Server 2008 R2.    
You need to capture all replication errors from all domain controllers to a central location.    
What should you do（）

单项选择题Your network consists of a single Active Directory domain.？ All domain controllers run Windows  Server 2008 R2.     You need to identify the Lightweight Directory Access Protocol （LDAP） clients that are using the  largest amount of available CPU resources on a domain controller.     What should you do（）

A.Review performance data in Resource Monitor.
B.Review the Hardware Events log in the Event Viewer.
C.Run the LAN Diagnostics Data Collector Set. Review the LAN Diagnostics report.
D.Run the Active Directory Diagnostics Data Collector Set. Review the Active Directory Diagnostics report

单项选择题You need to validate whether Active Directory successfully replicated between two domain  controllers.     What should you do（）

A.Run the DSget command.
B.Run the Dsquery command.
C.Run the RepAdmin command.
D.Run the Windows System Resource Manager.

单项选择题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（）

A.Rsdiag
B.Rstools
C.Repadmin
D.Active Directory Domains and Trusts

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

A.Run Event Viewer.
B.View the Netlogon.log file.
C.Run the Security Configuration Wizard.
D.View the Security tab on the domain controller computer object.

单项选择题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（）

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