单项选择题 Your network contains an Active Directory forest named contoso.com. The forest contains five domains. All domain controllers run Windows Server 2012 R2. The contoso.com domain contains two user accounts named Admin1 and Admin2. You need to ensure that Admin1 and Admin2 can configure hardware and services on all of the member servers in the forest. The solution must minimize the number of privileges granted to Admin1 and Admin2. Which built-in groups should you use?（）

单项选择题 Your network contains an Active Directory domain named contoso.com. The domain contains a server named Server1. Server1 runs Windows Server 2012 R2. You create a group Managed Service Account named gservice1. You need to configure a service named Service1 to run as the gservice1 account. How should you configure Service1?（）

单项选择题 You have two servers named Server1 and Server2 that run Windows Server 2012 R2. Server1 and Server2 are part of a workgroup. On Server1, you add Server2 to Server Manager. When you attempt to connect to Server2 from Server Manager, you receive the following error message: "Credentials not valid." You need to ensure that you can manage Server2 from Server1 by using Server Manager on Server1. What should you do?（）