单项选择题 contains 500 client computers that run Windows 8. All of the client computers connect to the Internet by using a web proxy. You deploy a server named Server1 that runs Windows Server 2012 R2. Server1 has the DNS Server server role installed. You configure all of the client computers to use Server1 as their primary DNS server. You need to prevent Server1 from attempting to resolve Internet host names for the client computers. What should you do on Server1?（）

单项选择题 You have a server named Server1 that runs Windows Server 2012 R2. You connect three new hard disks to Server1. You need to create a storage space that contains the three disks. The solution must meet the following requirements: Provide fault tolerance if a single disk fails. Maximize the amount of files that can be stored in the storage space. What should you create?（）

单项选择题 Your network contains a server named Server1 and 10 Web servers. All servers run Windows Server 2012 R2. You create a Windows PowerShell Desired State Configuration (DSC) to push the settings from Server1 to all of the Web servers. On Server1, you modify the file set for the Web servers. You need to ensure that all of the Web servers have the latest configurations. Which cmdlet should you run on Server1?（）