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.
Hot Area:
Answer: 
This is wrong. it should be: .\setup.exe /preparead /organizationname “Contoso” /iacceptexchangeserverlicenseterms
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Yup, it’s setup.exe, they got it mixed up. Other than that the rest of the parameters are correct.
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I think this answer are right, please:
http://msexchangeguru.com/2015/10/09/e2016-adpreparation/
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https://practical365.com/exchange-server/installing-exchange-server-2016/
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BTW, part of the new 104Q 70-345 dumps FYI:
https://drive.google.com/open?id=0B-ob6L_QjGLpck5vRk5XUVFQb00
Best Regards!
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