How to Change FSMO Roles in Active Directory Server

In this scenario , I have two DC (DC1 and DC2). I Need to change all roles into DC1. 

Note : 

0 = PDCEmulator
1 = RIDMaster
2 = Infrastructure Master
3 = Schema Master
4 = Domain Naming Master

1. Run PowerShell as administrator and use command as below : 

Move-ADDirectoryServerOperationMasterRole –Identity "Target_DC_Name" –OperationMasterRole 0,1,2,3,4

Example :

Move-ADDirectoryServerOperationMasterRole –Identity "DC1" –OperationMasterRole 0,1,2,3,4

3. Press Y for each or A for all.

4. To verify that the roles have transferred, type the following command:

Get-ADDomainController -Filter * | Select Name, OperationMasterRoles 

Or also can use : 

Netdom query fsmo