Takhle:
Import-Module ActiveDirectory
Get-ADForest | Select-Object DomainNamingMaster, SchemaMaster
Get-ADDomain | Select-Object InfrastructureMaster, RIDMaster, PDCEmulator
Get-ADDomainController -Filter * | Select-Object Name, Domain, Forest, OperationMasterRoles | Where-Object {$_.OperationMasterRoles} | Format-Table -AutoSize