UCS takeover admin account question

I’ve been tasked with retiring an old 2k8R2 domain controller and replacing it with UCS.
The takeover module wants an admin account and password.
Which admin, how admin?
A local admin ID? (which I’ve been reading doesn’t really exist on a DC)
I’ve been given an account ID which can log into the DC and I can get a cmd prompt as administrator, this good enough?
Or is this a Domain Admin ID? If so, how would I check if the ID I have is good enough? (I’m a unix admin, not AD)

It should be a member of the Domain Admins group.

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