单项选择题 You perform a Server Core Installation of Windows Server 2012 R2 on a server named Server1. You need to add a graphical user interface (GUI) to Server1. Which tool should you use?（）

单项选择题 You have a Hyper-V host named Server1 that runs Windows Server 2012 R2 Datacenter.Server1 is located in an isolated network that cannot access the Internet. On Server1, you install a new virtual machine named VM1.VM1 runs Windows Server 2012 R2 Essentials and connects to a private virtual network. After 30 days, you discover that VM1 shuts down every 60 minutes. You need to resolve the issue that causes VM1 to shut down every 60 minutes. What should you do?（）

单项选择题 Your network contains an Active Directory domain named contoso.com. The password policy for the domain is set to require a minimum password length of 10 characters. A user named User1 and a user named User2 work for the sales department. User1 is forced to create a domain password that has a minimum of 12 characters. User2 is forced to create a domain password that has a minimum of eight characters. You need to identify what forces the two users to have different password lengths. Which tool should you use?（）