Your network contains a single Active Directory forest. The forest contains two domains named  contoso.com and sales.contoso.com. The domain controllers are configured as shown in the  following table：    
Server name  Domain  
DNS zones hosted  
DC1  contoso.com  contoso.com  
DC2  contoso.com  contoso.com  
DC3  sales.contoso.com  sales.contoso.com  
DC4  sales.contoso.com  sales.contoso.com  
All domain controllers run Windows Server 2008 R2. All zones are configured as Active Directory-  
integrated zones.  
You need to ensure that contoso.com records are available on DC3.    
Which command should you run（）

单项选择题Your network contains an Active Directory forest. The forest contains one domain and three sites.  Each site contains two domain controllers. All domain controllers are DNS servers.     You create a new Active Directory-integrated zone.     You need to ensure that the new zone is replicated to the domain controllers in only one of the  sites.   What should you do first（）

A.Modify the NTDS Site Settings object for the site.
B.Modify the replication settings of the default site link.
C.Create an Active Directory connection object.
D.Create an Active Directory application directory partition.

单项选择题Your network contains an Active Directory domain named contoso.com. The contoso.com DNS  zone is stored in Active Directory. All domain controllers run Windows Server 2008 R2.     You need to identify if all of the DNS records used for Active Directory replication are correctly  registered.     What should you do（）

A.From the command prompt， use netsh.exe.
B.From the command prompt， use dnslint.exe.
C.From the Active Directory Module for Windows PowerShell， run the Get-ADRootDSE cmdlet.
D.From the Active Directory Module for Windows PowerShell， run the Get-ADDomainController cmdlet.

单项选择题Your network contains an Active Directory domain named contoso.com. You run nslookup.exe as  shown in the following Command Prompt window.     You need to ensure that you can use Nslookup to list all of the service location （SRV） resource  records for contoso.com.     What should you modify（）

A.the root hints of the DNS server
B.the security settings of the zone
C.the Windows Firewall settings on the DNS server
D.the zone transfer settings of the zone

单项选择题Your network contains a single Active Directory domain named contoso.com. The domain  contains two domain controllers named DC1 and DC2 that run Windows Server 2008 R2. DC1  hosts a primary zone for contoso.com. DC2 hosts a secondary zone for contosto.com. On DC1，  you change the zone to an Active Directory-integrated zone and configure the zone to accept  secure dynamic updates only.     You need to ensure that DC2 can accept secure dynamic updates to the contoso.com zone.     Which command should you run（）

A.dnscmd.exe dc2.contoso.com /createdirectorypartition dns.contoso.com
B.dnscmd.exe dc2.contoso.com /zoneresettype contoso.com /dsprimary
C.dnslint.exe /ql
D.repadmin.exe /syncall /force

单项选择题Your network contains an Active Directory domain named contoso.com. You plan to deploy a  child domain named sales.contoso.com. The domain controllers in sales.contoso.com will be  DNS servers for sales.contoso.com.     You need to ensure that users in contoso.com can connect to servers in sales.contoso.com by  using fully qualified domain names （FQDNs）.     What should you do（）

A.Create a DNS forwarder.
B.Create a DNS delegation.
C.Configure root hint servers.
D.Configure an alternate DNS server on all client computers.