单项选择题 Your network contains an Active Directory domain named contoso.com. All domain controllers run Windows Server 2012 R2. You need to ensure that the local administrator account on all computers is renamed to L.Admin. Which Group Policy settings should you modify?（）

单项选择题 Your network contains an Active Directory domain named contoso.com. The domain contains a file server named Server1 that runs Windows Server 2012 R2. Server1 contains a shared folder named Share1. Share1 contains the home folder of each user. All users have the necessary permissions to access only their home folder. The users report that when they access Share1, they can see the home folders of all the users. You need to ensure that the users see only their home folder when they access Share1. What should you do from Server1?（）

单项选择题 Your network contains multiple subnets. On one of the subnets, you deploy a server named Server1 that runs Windows Server 2012 R2. You install the DNS Server server role on Server1, and then you create a standard primary zone named contoso.com. You need to ensure that client computers can resolve IP addresses to host names. What should you do first?（）