The answer is a device restriction policy for Windows 10, as this is the Intune policy specifically designed to block unauthorized app installation by preventing users from installing apps from untrusted sources. Device restriction policies act as a device-wide control, allowing administrators to toggle settings like “Install apps from stores only” or block sideloading, which directly stops users from bypassing the corporate app store. On the Microsoft Cybersecurity Architect exam, this question tests your ability to distinguish between Intune policy types: a common trap is confusing device restriction policies with app protection policies, which only manage data within managed apps rather than controlling installation at the OS level. Remember that compliance policies assess device health but don’t block actions, and configuration policies handle settings like Wi-Fi, not installation control. A useful memory tip is “Restrict the device, protect the app”—device restriction policies lock down the machine, while app protection policies safeguard the data inside approved applications.
SC-100 Design security solutions for infrastructure Practice Question
This SC-100 practice question tests your understanding of design security solutions for infrastructure. 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.
Your company uses Microsoft Intune to manage devices. You need to design a solution that prevents users from installing unauthorized applications on corporate Windows 10 devices. Which Intune policy should you configure?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Device restriction policy (Windows 10)
Option A is correct because Intune device restriction policies can block installation of apps from untrusted sources. Option B is wrong because app protection policies apply to managed apps, not device-wide installation. Option C is wrong because compliance policies assess device state but do not block installation. Option D is wrong because configuration policies set settings but not app installation control.
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.
✗
Compliance policy
Why it's wrong here
Compliance policies assess device health but do not block app installation.
✗
App protection policy (MAM)
Why it's wrong here
App protection policies control data within apps, not installation.
✓
Device restriction policy (Windows 10)
Why this is correct
Device restrictions include settings to block app installation from untrusted sources.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configuration policy (OMA-URI)
Why it's wrong here
Configuration policies set settings but not specifically app installation control.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-100 question in full detail.
Identify which SC-100 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.
Design security solutions for infrastructure — This question tests Design security solutions for infrastructure — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Device restriction policy (Windows 10) — Option A is correct because Intune device restriction policies can block installation of apps from untrusted sources. Option B is wrong because app protection policies apply to managed apps, not device-wide installation. Option C is wrong because compliance policies assess device state but do not block installation. Option D is wrong because configuration policies set settings but not app installation control.
What should I do if I get this SC-100 question wrong?
Identify which SC-100 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.
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Question Discussion
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