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Exam MS-102 topic 1 question 12 discussion

Actual exam question from Microsoft's MS-102

Question #: 12
Topic #: 1

Your network contains an Active Directory forest named contoso.local.
You purchase a Microsoft 365 subscription.
You plan to move to Microsoft 365 and to implement a hybrid deployment solution for the next 12 months.
You need to prepare for the planned move to Microsoft 365.
What is the best action to perform before you implement directory synchronization? More than one answer choice may achieve the goal. Select the BEST answer.

A. Purchase a third-party X.509 certificate.
B. Create an external forest trust.
C. Rename the Active Directory forest.
D. Purchase a custom domain name.

Show Suggested Answer

Suggested Answer: D 🗳️

by Greatone1 at Aug. 21, 2023, 1:52 a.m.

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Greatone1

Highly Voted 1 year, 10 months ago

Selected Answer: D

Given answer is correct

upvoted 12 times

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Nilz76

Highly Voted 1 year, 8 months ago

Selected Answer: D

D. Purchase a custom domain name The best action to take before implementing directory synchronization for a hybrid deployment with Microsoft 365 would be to purchase a custom domain name. When you set up Microsoft 365, you're prompted to provide your domain name. This domain should match the domain you use within your on-premises Active Directory environment to ensure a seamless user experience and email delivery.

upvoted 6 times

CheMetto

1 year, 8 months ago

The problem is that the domain TLD is local. You can't purchase a domain named contoso.local, no one can sell it because is a special name used by iana... so as first step i guess you should rename your domain, then purchase a custom domain name

upvoted 4 times

Nocho

1 year, 7 months ago

It does not matter that they use a ".local" domain name. When you configure your Microsoft tenant you need to provide your custom domain name. When syncing users you either provide proxy address details corresponding to your custom domain name or you currently have an exchange server with the SMTP attributes. What your local AD domain is, doesn't matter.

upvoted 3 times

ronin201

1 year, 1 month ago

no, you can go with tenant .onmicrosoft.com

upvoted 2 times

MR_Eliot

9 months, 2 weeks ago

you can, but it will not be really professional. Best option is to purchase the domain and then add it to DNS-suffix list.

upvoted 2 times

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004b54b

Most Recent 2 months, 3 weeks ago

Selected Answer: D

https://learn.microsoft.com/en-us/microsoft-365/enterprise/prepare-a-non-routable-domain-for-directory-synchronization?view=o365-worldwide#what-if-i-only-have-a-local-on-premises-domain "The domain has to be a valid Internet domain (such as, .com, .org, .NET, .us). If your internal AD DS only uses a nonroutable domain (for example, .local), this can't possibly match the verified domain you have for your Microsoft 365 tenant. You can fix this issue by either changing your primary domain in your on-premises AD DS, or by adding one or more UPN suffixes." First, buy a domain name, then 2) fix it on your local AD by adding DNS suffix + updating users to this new DNS suffix

upvoted 1 times

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FemiA55

7 months, 2 weeks ago

D. Purchase a custom domain name.

upvoted 1 times

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jsmthy

8 months ago

Selected Answer: D

The answer is D. It took some research, but although Entra ID doesn't support .local/non-routable domains, it can accept users and put them in as (tenant).onmicrosoft.com users. Therefore the next best action is to buy a custom domain that can be implemented on the on-prem AD afterwards if so desired.

upvoted 1 times

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RFULL

10 months ago

Selected Answer: D

https://learn.microsoft.com/en-us/microsoft-365/enterprise/prepare-a-non-routable-domain-for-directory-synchronization?view=o365-worldwide

upvoted 1 times

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LakesWizard

1 year ago

I'd say C and D. Because if you have yours users as .local in their UPN they'll sync as .onmicrosoft.com. You can start from the beggining by doing it right and purchase a .com and updating your users UPN from local to .com

upvoted 2 times

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AndrewsF

1 year, 4 months ago

In my opinion, the correct answer is D. You don't need to rename a ".local" domain, you can just create an alternate login suffix for the routable domain and purchase the external domain. So D is the only answer that makes the most sense to me.

upvoted 3 times

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