DNS before DCPromo?

Someone told me that the proper way to setup a domain controller on a new server is to first install DNS. After DNS is installed, then the server can be promoted. Is this correct? He didn't elaborate, unfortunately. I'm hoping there's someone out there that can elaborate on this issue, and why. This is for Windows Server 2012.
bobox00Asked:
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Zaheer IqbalTechnical Assurance & ImplementationCommented:
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wynandkunkelCommented:
If this is the first Domain controller it will install and configure DNS as part of the DCPROMO.  You to do it manually.  From there onwards on additional server, it is up to the installer whether to install DNS.
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mmichaCommented:
DCPromo will do it automatically if it is the first domain controller.  It will even set the currently set DNS servers on the NIC as the forwarders in DNS.
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bobox00Author Commented:
Thanks for all comments.
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