SC-100 Practice Question: Design solutions that align with security best practices and priorities
This SC-100 practice question tests your understanding of design solutions that align with security best practices and priorities. 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 organization is designing a security strategy for Microsoft 365 Copilot. You need to ensure that Copilot does not generate responses based on sensitive data that users are not authorized to access. Which TWO configurations should you implement?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Implement Conditional Access policies to restrict Copilot access based on user, device, and location.
Conditional Access policies (C) are correct because they enforce access controls at the authentication layer, ensuring that only authorized users from compliant devices and trusted locations can interact with Copilot. Sensitivity labels (E) are correct because Microsoft 365 Copilot respects sensitivity labels on documents and emails, preventing it from generating responses that include content from labeled sensitive data unless the user has the appropriate permissions. Together, these two controls address both who can access Copilot and what data Copilot can use in its responses.
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.
✗
Set up Information Barriers to prevent Copilot from accessing data across departments.
Why it's wrong here
Information Barriers are for communication, not Copilot data access.
✗
Configure Data Loss Prevention (DLP) policies to block sensitive data from being used in prompts.
Why it's wrong here
DLP policies do not control Copilot's data sources.
✓
Implement Conditional Access policies to restrict Copilot access based on user, device, and location.
Why this is correct
Conditional Access can restrict who can use Copilot.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable Purview Audit to monitor Copilot interactions.
Why it's wrong here
Audit logs do not prevent unauthorized access.
✓
Use sensitivity labels to classify and protect data; Copilot respects labels.
Why this is correct
Sensitivity labels help Copilot understand data sensitivity.
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 Data Loss Prevention (DLP) with access control, mistakenly thinking DLP can block Copilot from using sensitive data internally, when in fact DLP only applies to data sharing and exfiltration, not to Copilot's internal data retrieval and response generation.
Detailed technical explanation
How to think about this question
Under the hood, Microsoft 365 Copilot uses the Microsoft Graph and the Microsoft 365 security and compliance boundary to determine which content it can access. Sensitivity labels are enforced via Azure Information Protection, and Copilot checks the label's permissions before including labeled content in its responses. Conditional Access policies integrate with Azure AD to evaluate risk signals (e.g., device compliance, location) before issuing tokens for Copilot, effectively blocking unauthorized sessions at the authentication gateway.
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-100 question in full detail.
Design solutions that align with security best practices and priorities — This question tests Design solutions that align with security best practices and priorities — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Implement Conditional Access policies to restrict Copilot access based on user, device, and location. — Conditional Access policies (C) are correct because they enforce access controls at the authentication layer, ensuring that only authorized users from compliant devices and trusted locations can interact with Copilot. Sensitivity labels (E) are correct because Microsoft 365 Copilot respects sensitivity labels on documents and emails, preventing it from generating responses that include content from labeled sensitive data unless the user has the appropriate permissions. Together, these two controls address both who can access Copilot and what data Copilot can use in its responses.
What should I do if I get this SC-100 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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