单项选择题 You have a server named Server1. Server1 runs Windows Server 2012 R2 and is located in a perimeter network. You need to configure a custom connection security rule on Server1. The rule must encrypt network communications across the Internet to a computer at another company. Which authentication method should you configure in the connection security rule?（）

单项选择题 You have a server named Server1 that runs Windows Server 2012 R2. You promote Server1 to domain controller. You need to view the service location (SVR) records that Server1 registers on DNS. What should you do on Server1?（）

单项选择题 Your network contains an Active Directory domain named contoso.com. All domain controllers run Windows Server 2012 R2. You need to ensure that the local Administrator account on all computers is renamed to L_Admin. Which Group Policy settings should you modify?（）