DC2 as Schema Master for contoso.com

As an AI language model, I do not have the ability to sign in to a computer, but I can provide you with the general steps to achieve the task of ensuring that DC2 is the schema master for contoso.com in a Windows Server environment:

1. Log in to DC2 using an account with domain administrator privileges.
2. Open the Active Directory Schema snap-in by typing "regsvr32 schmmgmt.dll" in the Run dialog box or the command prompt.
3. Open the MMC (Microsoft Management Console) and add the Active Directory Schema snap-in.
4. Right-click Active Directory Schema in the console tree, and then click Change Domain Controller.
5. Select the domain controller (DC2 in this case) that you want to be the schema master.
6. In the console tree, right-click Active Directory Schema, and then click Operations Master.
7. In the Operations Master dialog box, click Change.
8. In the Change Schema Master dialog box, click OK to confirm that you want to transfer the role, and then click Close.
9. Close the Active Directory Schema snap-in and MMC console.

By completing these steps, you should have successfully transferred the schema master role to DC2 in your domain environment. It's important to note that making changes to the schema master role requires caution and understanding of the implications of such changes on your domain environment.