问答题 Your network contains an Active Directory domain named contoso.com. The domain contains 25 servers. All servers run Windows Server 2012 R2. You need to create a Windows Firewall rule to prevent administrators from using Internet Explorer to access the Internet while they are logged on interactively to the servers. The solution must not prevent administrators from accessing websites on the internal network. How should you configure the rule? To answer, select the appropriate options in the answer area.

单项选择题 You have a server named Server1 that runs Windows Server 2012 R2. You try to install the Microsoft .NET Framework 3.5 Features feature on Server1, but the installation fails repeatedly. You need to ensure that the feature can be installed on Server1. What should you do?（）

单项选择题 You have a server named Corel that has a Server Core Installation of Windows Server 2012 R2. Corel has the Hyper-V server role installed. Corel has two network adapters from different third-party hardware vendors. You need to configure network traffic failover to prevent connectivity loss if a network adapter fails. What should you use?（）