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Renaming existing Domain Controller's Name

Last Modified: 2020-01-28
 I have a question about renaming the name of the existing windows 2019 domain controller.
 Say existing domain controller names are as follows:
 and you like to change the names to:

 I googled this subject and found conflicting articles:

First, this article (https://community.spiceworks.com/how_to/103538-properly-renaming-a-domain-controller-server-2012r2) showed the following commands. I tried and seemed to have worked. I checked active directory users & computers and active directory sites and services  and I could see renamed domain controllers.

netdom computername DC1.consento.local /add:PDC.consento.local
netdom computername DC1.consento.local /makeprimary:PDC.consento.local
shutdown /r /t 0

netdom computername DC2.consento.local /add:BDC.consento.local
netdom computername DC2.consento.local /makeprimary:BDC.consento.local
shutdown /r /t 0
But then I found this article (https://www.kieri.com/how-to-rename-windows-server-2016-domain-controller/) where talks about:
1. Demote existing domain controller first.
2. Rename it
3. Promote renamed DC.

Which one is correct?
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