Hotspot Question
You need to instruct the Active Directory administrators how to prepare the Active Directory
environment to support the planned Exchange Server 2016 deployment.
What command should you instruct administrators to run? To answer, select the appropriate
options in the answer area.
Answer: 
adprep.exe /PREPARESCHEMA /ORGANIZATIONNAME “CONTOSO” /IAcceptExchageServerLicenseTerms
https://technet.microsoft.com/en-us/library/bb125224(v=exchg.160).aspx#Step2