The answer is Microsoft Entra Connect must be installed and configured. This is the mandatory prerequisite because Entra hybrid join requires a synchronized identity bridge between your on-premises Active Directory and Microsoft Entra ID; without Entra Connect, the on-premises device objects cannot be linked to their cloud counterparts, making hybrid join impossible. On the Microsoft 365 Endpoint Administrator MD-102 exam, this concept tests your understanding that hybrid join is fundamentally an identity synchronization scenario, not just a device configuration—a common trap is assuming Azure AD-only tools like Intune can handle the join without the sync engine. Remember the memory tip: “No sync, no hybrid link”—if Entra Connect isn’t running, devices can’t be hybrid joined, regardless of other settings.
MD-102 Prepare infrastructure for devices Practice Question
This MD-102 practice question tests your understanding of prepare infrastructure for devices. 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.
Your organization is planning to deploy Microsoft Entra hybrid joined devices. What is a prerequisite for this configuration?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Microsoft Entra Connect must be installed and configured.
Microsoft Entra hybrid joined devices require synchronization of on-premises Active Directory identities to Microsoft Entra ID. Microsoft Entra Connect (or Microsoft Entra Connect Sync) is the tool that performs this identity synchronization, making it a mandatory prerequisite. Without it, the on-premises AD objects cannot be linked to Entra ID for hybrid join.
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.
✗
Azure AD Premium P1 license is required.
Why it's wrong here
While some features require P1, hybrid join itself does not require a premium license.
✗
Microsoft Intune must be enabled for auto-enrollment.
Why it's wrong here
Intune is not a prerequisite for hybrid join, though it can be used for management after join.
✗
Microsoft Defender for Endpoint must be deployed.
Why it's wrong here
Defender for Endpoint is not required for hybrid join.
✓
Microsoft Entra Connect must be installed and configured.
Why this is correct
Entra Connect synchronizes on-premises AD to Entra ID, which is required for hybrid identity.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse licensing requirements (Premium P1) or optional management tools (Intune, Defender) with the core prerequisite of identity synchronization, which is the foundational step for hybrid join.
Detailed technical explanation
How to think about this question
Microsoft Entra hybrid join relies on a service connection point (SCP) published in the on-premises Active Directory configuration partition, which Microsoft Entra Connect creates during configuration. The SCP allows client devices to discover the Microsoft Entra tenant during the join process. Without the SCP and proper synchronization, devices cannot complete the hybrid join registration even if they are domain-joined.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MD-102 question in full detail.
Prepare infrastructure for devices — This question tests Prepare infrastructure for devices — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Microsoft Entra Connect must be installed and configured. — Microsoft Entra hybrid joined devices require synchronization of on-premises Active Directory identities to Microsoft Entra ID. Microsoft Entra Connect (or Microsoft Entra Connect Sync) is the tool that performs this identity synchronization, making it a mandatory prerequisite. Without it, the on-premises AD objects cannot be linked to Entra ID for hybrid join.
What should I do if I get this MD-102 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.
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Question Discussion
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