Your network contains an Active Directory domain named contoso.com. The domain contains a print server named Server1 that runs Windows Server 2012 R2. Server1 contains a local group named Group1.
You share a printer named Printer1 on Server1.
You need to configure Printer1 to meet the following requirements:
Ensure that the members of Group1, the Server Operators group, the Administrators group, and the Print Operators group can send print jobs to Printer1.
Prevent other users from sending print jobs to Printer1.
Which two actions should you perform?（）

contains a domain controller named DC1 that has the DNS Server server role installed.DC1 has a standard primary DNS zone for contoso.com.
You need to ensure that only client computers in the contoso.com domain will be able to add their records to the contoso.com zone.
What should you do first?（）