Your network contains an Active Directory domain named contoso.com. You have a DHCP server named Server1 that runs Windows Server 2008.
You install Windows Server 2012 R2 on a server named Server2. You install the DHCP Server server role on Server2.
You need to migrate the DHCP services from Server1 to Server2. The solution must meet the following requirements:
-Ensure that existing leases are migrated.
-Prevent lease conflicts.
Which three actions should you perform? (Each correct answer presents part of the solution. Choose three.)
Select one or more of the following: