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.
You are troubleshooting a Windows 10 device that is not receiving required security updates from Microsoft Intune. The device is enrolled and shows as compliant. The update ring policy is assigned to the device. You check the Windows Update for Business logs and see that the deferral period is set correctly. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The update ring is not assigned to the device's group.
Option D is correct because the device is enrolled and compliant, and the deferral period is correctly set, which eliminates policy configuration issues. The most likely remaining cause is that the update ring policy is not assigned to the device's group, meaning the policy never reaches the device via Intune's policy delivery mechanism. Without proper group assignment, the Windows Update for Business settings are not applied, even if the device is compliant and the ring policy exists.
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.
✗
The update ring is configured with an incorrect deferral period.
Why it's wrong here
The logs confirm the deferral period is correct.
✗
The device is not compliant with the security baseline.
Why it's wrong here
Non-compliance does not prevent update ring policies from applying.
✗
Windows Update is blocked by the corporate firewall.
Why it's wrong here
Windows Update for Business uses HTTPS and is typically allowed.
✓
The update ring is not assigned to the device's group.
Why this is correct
Without proper assignment, the policy does not apply to the device.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
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 assume a compliant device with a correctly configured policy will always receive updates, but they overlook the critical step of verifying that the device is actually a member of the assigned group, which is a separate prerequisite from compliance or policy configuration.
Detailed technical explanation
How to think about this question
Intune update ring policies are delivered via the MDM channel using the Policy CSP (Policy Configuration Service Provider) node, specifically ./Device/Vendor/MSFT/Policy/Config/Update. The policy is only applied when the device is a member of the Azure AD group targeted in the assignment; if the device is not in the group, the policy is never pushed, and the device falls back to default Windows Update behavior. This is a common misconfiguration when using dynamic groups that have not yet evaluated or when the device is added to a static group after the policy assignment was created.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
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: The update ring is not assigned to the device's group. — Option D is correct because the device is enrolled and compliant, and the deferral period is correctly set, which eliminates policy configuration issues. The most likely remaining cause is that the update ring policy is not assigned to the device's group, meaning the policy never reaches the device via Intune's policy delivery mechanism. Without proper group assignment, the Windows Update for Business settings are not applied, even if the device is compliant and the ring policy exists.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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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