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Exam MS-100 topic 5 question 34 discussion

Actual exam question from Microsoft's MS-100
Question #: 34
Topic #: 5
[All MS-100 Questions]

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
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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 deploy a site-to-site VPN from each branch office to Microsoft Azure.
Does this meet the goal?

  • A. Yes
  • B. No
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Suggested Answer: B 🗳️
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.
A site-to-site VPN from each branch office to Microsoft Azure would still use the WAN link so this answer does achieve the goal.
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.

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T10T
2 years, 8 months ago
Selected Answer: B
Solution: In each branch office, you add a direct connection to the Internet.
upvoted 1 times
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harburn422
4 years, 2 months ago
Site 2 Site VPN to Azure, not happening. Answer is "B" for sure!
upvoted 1 times
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mkoprivnj
4 years, 4 months ago
No for sure!
upvoted 2 times
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phvogel
4 years, 6 months ago
I think this would solve the problem related to the WAN being down because the individual offices would communicate with Azure directly through their VPN -- the offices would no longer be dependent on the web. Microsoft says that VPNs aren't optimal (because of the additional encryption)...but it would solve the WAN problem.
upvoted 1 times
VTHAR
4 years, 6 months ago
Site-to-site VPN to Microsoft Azure would NOT solve WAN being down. One fundamental requirement to use M365 services is that you need to have Internet connection and Azure is not Internet. Related discussion here => https://techcommunity.microsoft.com/t5/azure-active-directory-identity/create-site-to-site-vpn-to-azure-active-directory/m-p/1296089
upvoted 4 times
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