What will happen to FSMO roles when one DC going down while another DC replicated?

[AliUrz]

Hi,

I have DC1 that has to FSMO Roles

1. Schema Master
2. Domain Naming Master

and I have another DC that named DC2 and has 3 other roles:

1. PDC
2. RID Master
3. Infrastructure Master

DC2 is replicating from DC1, What will happen to 2 first FSMO roles if DC1 going down? Those will transfer automatically to DC2?

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