You have a Windows Server 2008 R2 that has the Active Directory Certificate Services server  role installed.  
You need to minimize the amount of time it takes for client computers to download a certificate  revocation list （CRL）.    
What should you do（）

Your company has an Active Directory forest. You plan to install an Enterprise certification  authority （CA） on a dedicated stand-alone server.
When you attempt to add the Active Directory Certificate Services （AD CS） server role， you find  that the Enterprise CA option is not available.
You need to install the AD CS server role as an Enterprise CA.    
What should you do first（）

You have an Active Directory domain that runs Windows Server 2008 R2. You need to implement  a certification authority （CA） server that meets the following requirements：    
- Allows the certification authority to automatically issue certificates  - Integrates with Active Directory Domain Services    
What should you do（）

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（）

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（）

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

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（）