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 2008R2.
You need to identify if all of the DNS records usedfor 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.

Explanation:
Reference:
http://technet.microsoft.com/en-us/library/dd197560.aspx
Dnslint.exe
DNSLint is a Microsoft Windows tool that can be used to help diagnose common DNS name resolution issues.
It can be targeted to look for specific DNS record sets and ensure that they are consistent across multiple DNS
servers. It can also be used to verify that DNS records used specifically for Active Directory replication are
correct.