I am definitely sure that the answer should be: When using powershell, an administrator can use the Install-ADDSForest cmdlet to create a new dc in a new forest. Install-ADDSForest is used to install first domain controller in new forest. To do that, you should execute this command through the command promt. It looks like this: C:\> Install-AddsForest. Then you'll need to set up the attributes.
