Each domain has a PDC emulator FSMO role so how do I determine which domain controller holds the PDC emulator FSMO role in the forest root domain if I have multiple domains in my forest? Sounds like you can’t see the forest root for the trees :-).
The answer of course is with PowerShell:
Get-ADForest | Select-Object -ExpandProperty RootDomain | Get-ADDomain | Select-Object -Property PDCEmulator
The Active Directory PowerShell module which is part of the Remote Server Administration Tools (RSAT) is installed on the workstation these commands are being run from. The module is automatically imported since the workstation is running a new enough version of PowerShell to take advantage of the module auto-loading feature that was first introduced in PowerShell version 3.