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Which migration strategy should you use?

Your company is planning to migrate to Microsoft Exchange Online. The company employs
1,000 people, each with a mailbox currently located on Exchange 2010 on-premises. You
estimate that it will take a minimum of four weeks to migrate all mailboxes from on-premises
Exchange to Exchange Online.
The company has the following migration requirements:
• During the migration, do not change the existing Microsoft Outlook profiles and . ost
files used by the employees.
• Ensure that email messages sent between on-premises mailboxes and online
mailboxes during the migration are secure.
• Do not send email messages between on-premises mailboxes and online mailboxes
over the Internet in plain text.
You need to select the migration strategy that meets the requirements.
Which migration strategy should you use?

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A.
Cutover migration only

B.
IMAP migration only

C.
Remote move migration only

D.
Staged migration only

20 Comments on “Which migration strategy should you use?

  1. Moe says:

    FYI, eliminating incorrect answers

    Can’t cutover Exchange migration:
    You plan to move your entire email organization to Office 365 and manage user accounts in Office 365

    Can’t use Staging migration due to:
    Staged migration doesn’t support migrating Exchange 2010 or Exchange 2013 mailboxes.

    IMAP migration:
    The Exchange Online mailboxes that you migrate email to must already exist. They aren’t provisioned during the IMAP migration process




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  2. Justin Thompson says:

    Moe is correct in that the answer is C. Larry and Curly would be proud. http://www.threestooges.com/

    I’ll elaborate a bit based on information from TechNet.

    Cutover migration is recommended to take place over a few days. The requirements say it will take a minimum of 4 weeks so you can rule out this answer.

    IMAP migration only method has a requirement that the Exchange Online mailboxes must already exist. We know from the requirements this is not the case so you can rule this option. This method is also typically used when migrating from another hosted service provider.

    Staged migration only method doesn’t support Exchange 2010 or 2013 mailboxes and the requirements state this is an Exchange 2010 on-premises implementation we are migrating to Exchange Online so cross this off the list.

    Remote move migrations is the correct answer and has the following capabilities to align with the requirements:
    -Secure routing between on-premises and Exchange Online organizations.
    -Single sign-on to mailboxes located either on-premises or in the Exchange Online organization.

    https://technet.microsoft.com/en-us/library/jj863291(v=exchg.150).aspx




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