单项选择题 Your network contains two servers named Server1 and Server2 that run Windows Server 2012 R2. Server1 is a DHCP server that is configured to have a scope named Scope1. Server2 is configured to obtain an IP address automatically. In Scope1, you create a reservation named Res_Server2 for Server2. A technician replaces the network adapter on Server2. You need to ensure that Server2 can obtain the same IP address. What should you modify on Server1?（）

单项选择题 Your network contains an Active Directory domain named contoso.com. The domain contains a domain controller named DC1 that runs Windows Server 2012 R2. You need to configure a central store for the Group Policy Administrative Templates. What should you do on DC1?（）

问答题 Your network contains an Active Directory domain named contoso.com. The domain contains a server named Server1. Server1 runs Windows Server 2012 R2 and is configured as the only domain controller. You need to retrieve a list of all the user accounts. The list must include the last time each user was authenticated successfully. Which Windows PowerShell command should you run? To answer, drag the appropriate cmdlet or property to the correct locations to complete the PowerShell command in the answer area. Each cmdlet or property may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.