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Microsoft SC-100 Exam - Topic 3 Question 80 Discussion

You have an on-premises network that has several legacy applications. The applications perform LDAP queries against an existing directory service.You are migrating the on-premises infrastructure to a cloud-only infrastructure.You need to recommend an identity solution for the infrastructure that supports the legacy applications. The solution must minimize the administrative effort to maintain the infrastructure.Which identity service should you include in the recommendation?
B) Microsoft Entra ID
A) Active Directory Domain Services (AD DS)
C) Microsoft Entra Domain Services
D) Microsoft Entra External ID

Microsoft SC-100 Exam - Topic 3 Question 80 Discussion

Actual exam question for Microsoft's SC-100 exam
Question #: 80
Topic #: 3
[All SC-100 Questions]

You have an on-premises network that has several legacy applications. The applications perform LDAP queries against an existing directory service.

You are migrating the on-premises infrastructure to a cloud-only infrastructure.

You need to recommend an identity solution for the infrastructure that supports the legacy applications. The solution must minimize the administrative effort to maintain the infrastructure.

Which identity service should you include in the recommendation?

Show Suggested Answer Hide Answer
Suggested Answer: B

by Gianna at May 11, 2026, 08:48 PM

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Gianna
4 days ago
True, but AD DS needs more maintenance. Azure AD DS is easier.
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Huey
9 days ago
But what about AD DS? It's familiar and reliable.
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Beatriz
14 days ago
Agreed! It minimizes admin effort too.
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Casie
19 days ago
I think Azure AD DS is the best choice. It supports LDAP queries.
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Lino
25 days ago
Surprised that Azure AD DS is the go-to here!
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Asuncion
30 days ago
I think AD DS is outdated for cloud solutions.
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Jules
1 month ago
Wait, can Azure AD handle those queries too?
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Lea
1 month ago
Totally agree, it supports LDAP queries!
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Frederick
2 months ago
Azure AD DS is the best fit for legacy apps.
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Edgar
2 months ago
I thought Azure AD was enough for everything, interesting!
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Truman
2 months ago
AD DS is outdated for cloud, stick with Azure AD DS.
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Thurman
2 months ago
Wait, can Azure AD really handle all that?
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Marguerita
2 months ago
I agree, it supports LDAP queries easily.
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Melvin
2 months ago
Azure AD DS is the way to go for legacy apps!
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Carlota
3 months ago
I feel like Azure AD B2C is not the right fit here since it's more focused on consumer identities, but I could be wrong.
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Altha
3 months ago
I'm leaning towards Azure AD DS too, but I wonder if there are any scenarios where AD DS would be better for this migration.
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Misty
3 months ago
I remember practicing a similar question where Azure AD was mentioned, but I don't think it supports legacy apps as well as Azure AD DS does.
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Wai
4 months ago
I think Azure AD DS might be the right choice since it supports LDAP queries, but I'm not entirely sure about the administrative effort involved.
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