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by lunarg on July 9th 2015, at 09:31

Based on recommendations and best practices from Microsoft, and information I found here, I compiled a FSMO placement scenario for 2 domain controllers:

DC1DC2
PDC Emulator
RID Master
Infrastructure Master
Schema Master
Domain Naming Master
Global Catalog

Also, if your domain is top-level in the AD forest, configure DC1 to sync with external time sources.