Your network contains two Active Directory forests named contoso.com and adatum.com. The  functional level of both forests is Windows Server 2008 R2. Each forest contains one domain.  Active Directory Certificate Services （AD CS） is configured in the contoso.com forest to allow  users from both forests to automatically enroll user certificates.  
You need to ensure that all users in the adatum.com forest have a user certificate from the  contoso.com certification authority （CA）.  
What should you configure in the adatum.com domain（）

Your network contains an Active Directory domain.    
You have a server named Server1 that runs Windows Server 2008 R2. Server1 is an enterprise root certification authority （CA）.  
You have a client computer named Computer1 that runs Windows 7. You enable automatic  certificate enrollment for all client computers that run Windows 7. You need to verify that the  Windows 7 client computers can automatically enroll for certificates.    
Which command should you run on Computer1（）