DRAG DROP
An organization has an on-premises Exchange organization that consists of two Active Directory forests in an
account and resource forest configuration. The resource forest hosts Exchange 2013. You plan to migrate to
Exchange Online.
You need to prepare for the migration.
Which three actions should you perform in sequence? To answer, move the appropriate actions form the list of
actions to the answer area and arrange them in the correct order.
Select and Place:
Answer: 
Explanation:
Before the migration to Exchange Online we must set up a hybrid deployment.
Box 1: DirSync for both Forests
* What if I have a resource forest for Exchange and an account forest for logins?
Setup dirsync against the resource forest (this we need to do) and setup ADFS (this is already done) against
the account forest. Eventually, collapse the resource forest data into the account forest and then change
dirsync to work against the account forest.
Box 2, Box 3: Run the Hybrid Configuration Wizard in each Foresthttp://blogs.technet.com/b/educloud/archive/2013/08/02/multi-forest-and-multi-tenant-scenarios-with-office-
365.aspx?pi47623=3
Using Dirsync for that topology is not supported with Dirsync. Azure AD sync was the first that support this scenario.
https://msdn.microsoft.com/en-us/library/azure/dn798670.aspx
So the answer should be:
1) In the account forest, install the Azure Active Directory Synchronization (AAD Sync) Tool
2) Configure the Azure Active Directory Synchronization (AAD Sync) Tool for both forest
3) In the resource forest run the Hybrid Configuration Wizard.
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