You plan to deploy a DHCP server that will support four subnets. The subnets will be configured as shown in the following table：

You need to identify which network ID you should use for each subnet. What should you identify？ 
To answer， drag the appropriate network ID to the each subnet in the answer area.

Your network contains an Active Directory domain named contoso.com. The domain contains a server named Server1 that runs Windows Server 2012 R2 and has the Remote Access server role installed. A user named User1 must connect to the network remotely. The client computer of User1 requires Challenge Handshake Authentication Protocol （CHAP） for remote connections. CHAP is enabled on Server1. You need to ensure that User1 can connect to Server1 and authenticate to the domain.
 What should you do from Active Directory Users and Computers？（）