The answer is to set the 'Block sign in' option to 'Yes' for all cloud-only users in the Microsoft Entra admin center. This is the simplest method because it directly targets the authentication layer, preventing cloud-only accounts from obtaining any access tokens, while leaving on-premises synchronized users unaffected. On the MS-102 exam, this question tests your understanding of identity management boundaries, specifically the distinction between cloud-only and synchronized identities when using Microsoft Entra Connect. A common trap is choosing to remove licenses, but that only blocks service access, not sign-in itself, or disabling users individually, which is not scalable. Remember the key principle: to block cloud-only users from signing in to Microsoft 365, you must stop them at the authentication gate, not just revoke their seat. Memory tip: think "Block the door, not the keycard"—blocking sign-in locks the door, while removing a license only takes away the keycard.
MS-102 Deploy and manage a Microsoft 365 tenant Practice Question
This MS-102 practice question tests your understanding of deploy and manage a microsoft 365 tenant. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
You need to ensure that only users from your organization's on-premises Active Directory can access Microsoft 365 services. You have Microsoft Entra Connect configured. What is the simplest way to prevent cloud-only user accounts from signing in?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set the 'Block sign in' option to 'Yes' for all cloud-only users in the Microsoft Entra admin center.
Blocking cloud sign-in for cloud-only users through the user's Sign-in settings directly prevents them from accessing services. Option B is wrong because removing licenses doesn't block sign-in, only access to services. Option C is wrong because disabling the user is a manual process and not scalable. Option D is wrong because this would block all users.
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.
✗
Configure a conditional access policy that blocks all users.
Why it's wrong here
Incorrect: This would block all users, including synced ones.
✗
Delete the cloud-only users from Microsoft Entra ID.
Why it's wrong here
Incorrect: This is irreversible and not the simplest.
✓
Set the 'Block sign in' option to 'Yes' for all cloud-only users in the Microsoft Entra admin center.
Why this is correct
Correct: This prevents sign-in for cloud-only users while allowing synced users.
Related concept
Read the scenario before looking for a memorised answer.
✗
Remove all licenses from cloud-only users.
Why it's wrong here
Incorrect: Users can still sign in without licenses, just can't access services.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 MS-102 question in full detail.
Identify which MS-102 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Deploy and manage a Microsoft 365 tenant — This question tests Deploy and manage a Microsoft 365 tenant — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Set the 'Block sign in' option to 'Yes' for all cloud-only users in the Microsoft Entra admin center. — Blocking cloud sign-in for cloud-only users through the user's Sign-in settings directly prevents them from accessing services. Option B is wrong because removing licenses doesn't block sign-in, only access to services. Option C is wrong because disabling the user is a manual process and not scalable. Option D is wrong because this would block all users.
What should I do if I get this MS-102 question wrong?
Identify which MS-102 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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 MS-102 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 MS-102 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.