单项选择题 You work as an administrator at ABC.com. The ABC.com network consists of a single domain named ABC.com. All servers in the ABC.com domain, including domain controllers, have Windows Server 2012 R2 installed. ABC.com has a domain controller, named ABC-DC01, which contains the ABC.com domain’s primary DNS zone. ABC.com’s workstations refer to ABC-DC01 as their primary DNS server. You have been instructed to make sure that any DNS requests that are not for the ABC.com domain, is resolved by ABC-DC01 querying the DNS server of ABC.com’s Internet Service Provider (ISP). Which of the following actions should you take?（）

单项选择题 You have Windows Server 2012 R2 DHCP servers with 50 leases. You want to convert leases into reservations using PowerShell command. What do you need to have to accomplish this?（）

单项选择题 You work as an administrator at Contoso.com. The Contoso.com network consists of a single domain named Contoso.com. All servers on the Contoso.com network have Windows Server 2012 installed. Contoso.com has its headquarters in London, and several widespread satellite offices. When Contoso.com releases a new written policy stating that the graphical user interface (GUI) should not be installed on any servers deployed to Contoso.com’s satellite offices. It is reported that a server in one of the satellite offices are not compliant with the new written policy. You are required to remedy the situation, while using the least amount of user interaction. Which of the following actions should you take?（）