SC-900 Describe the capabilities of Microsoft Entra Practice Question
This SC-900 practice question tests your understanding of describe the capabilities of microsoft entra. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is planning to migrate from on-premises Active Directory to Microsoft Entra ID. They have multiple on-premises applications that use LDAP for authentication. They want to enable single sign-on (SSO) to these applications from the cloud without modifying the applications. Which approach should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Microsoft Entra Domain Services
Microsoft Entra Domain Services provides managed domain services such as LDAP, Kerberos, and NTLM authentication without requiring you to deploy and manage domain controllers. Since the on-premises applications use LDAP for authentication and cannot be modified, Entra Domain Services can be used to lift and shift these applications into Azure while enabling SSO from the cloud, as it presents a compatible LDAP interface that the applications can continue to use.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Microsoft Entra Domain Services
Why this is correct
Entra Domain Services provides LDAP, Kerberos, and NTLM authentication for legacy apps.
Related concept
Read the scenario before looking for a memorised answer.
✗
Federation with Active Directory Federation Services (AD FS)
Why it's wrong here
AD FS requires application changes (WS-Federation/SAML) and does not natively support LDAP.
✗
Pass-through authentication
Why it's wrong here
PTA does not provide LDAP services.
✗
Password hash synchronization with Seamless SSO
Why it's wrong here
Password hash sync does not expose LDAP endpoints.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse authentication methods (like Pass-through or Federation) with directory services, not realizing that legacy LDAP-based applications require a domain service that exposes an LDAP endpoint, not just a cloud authentication protocol.
Detailed technical explanation
How to think about this question
Entra Domain Services creates a managed domain that is synchronized from your on-premises AD, supporting LDAP v3 (RFC 4511) over both simple bind and SASL. It also supports secure LDAP (LDAPS) over port 636, allowing legacy applications to authenticate without code changes. In a real-world scenario, an enterprise with an internal HR app using LDAP for employee login can point the app to the Entra Domain Services LDAP endpoint, and users can sign in with their cloud credentials, achieving SSO without rewriting the application.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-900 question in full detail.
Describe the capabilities of Microsoft Entra — This question tests Describe the capabilities of Microsoft Entra — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Microsoft Entra Domain Services — Microsoft Entra Domain Services provides managed domain services such as LDAP, Kerberos, and NTLM authentication without requiring you to deploy and manage domain controllers. Since the on-premises applications use LDAP for authentication and cannot be modified, Entra Domain Services can be used to lift and shift these applications into Azure while enabling SSO from the cloud, as it presents a compatible LDAP interface that the applications can continue to use.
What should I do if I get this SC-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This SC-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SC-900 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.