You work as an Exchange Administrator for ABC Inc. The company has a Windows 2008 Active Directory-based network. The network contains an Exchange Server 2003 organization.

The management instructs you to deploy Exchange Server 2010 in your network. You decide to prepare the schema and domain first.

Which of the following commands should you run prior to performing the normal schema and domain preparation?

A.
Setup /PrepareSchema.

B.
Setup /PrepareLegacyExchangePermissions.

C.
Setup /PrepareAD.

D.
Setup /PrepareLegacyExchangePermissions:child.ABC.com.

Explanation:
You would run Setup /PrepareLegacyExchangePermissions followed by Setup /PrepareSchema if you were to run them separately. However, in reality you would just run Setup /PrepareAD as this runs through both the aforementioned actions if they have not previously been run.