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Your company has a main office and three branch offices. All the branch offices connect to the main office by using a WAN link. The main office has a high-speed Internet connection. All the branch offices connect to the Internet by using the main office connection.
Users use Microsoft Outlook 2016 to connect to a Microsoft Exchange Server mailbox hosted in the main office.
The users report that when the WAN link in their office becomes unavailable, they cannot access their mailbox.
You create a Microsoft 365 subscription, and then migrate all the user data to Microsoft 365.
You need to ensure that all the users can continue to use Outlook to receive email messages if a WAN link fails.
Solution: You enable Cached Exchange Mode for all the Outlook profiles.
Does this meet the goal?
A . Yes
B . No
Answer: B
Explanation:
The question states that the branch offices connect to the Internet by using the main office connections.
Therefore, all Internet traffic goes over the WAN link between the branch office and main office.
After the migration, the users connect to their mailboxes hosted in Exchange Online over the Internet and therefore over the WAN link.
If the WAN link goes down, the branch office users will not be able to connect to the Internet and therefore will not be able to access their email using Outlook.
Using Cached mode would enable users to access emails that have already been downloaded as they would be cached in Outlook. However, the users would not be able to download new email or send email if the WAN link failed.
The solution is to add a direct connection to the Internet from the branch offices, so their Internet traffic does not go over the WAN link.