The answer is an auto-labeling policy. This is the correct choice because auto-labeling policies in Microsoft Purview Information Protection are specifically designed to automatically apply sensitivity labels to documents and emails based on the detection of sensitive data, such as credit card numbers, using built-in sensitive information types. Unlike manual or default labeling, this policy operates without user intervention, scanning content at rest or in transit to enforce classification based on conditions you define. On the Microsoft Cybersecurity Architect exam, this tests your understanding of how to implement data protection controls at scale, often appearing in scenario-based questions where automated compliance is required. A common trap is confusing auto-labeling with manual labeling policies or retention labels, which do not trigger on sensitive data patterns. Memory tip: think of auto-labeling as “set it and forget it” for sensitive data—if the data matches, the label attaches automatically.
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.
An organization uses Microsoft Purview Information Protection. They want to automatically apply a sensitivity label to documents containing credit card numbers. Which policy should they configure?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Auto-labeling policy
Auto-labeling policies in Microsoft Purview Information Protection automatically apply sensitivity labels to documents and emails that match specified conditions, such as the presence of credit card numbers. This policy uses sensitive information types (e.g., Credit Card Number) to scan content and apply the label without user intervention, meeting the requirement for automatic labeling.
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.
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Retention policy
Why it's wrong here
Retention policies manage data retention, not labeling.
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Sensitivity label policy
Why it's wrong here
Sensitivity label policies define which labels users can apply, but do not auto-apply based on content.
✓
Auto-labeling policy
Why this is correct
Auto-labeling policies can automatically label documents containing sensitive data like credit cards.
Related concept
Read the scenario before looking for a memorised answer.
✗
Data loss prevention policy
Why it's wrong here
DLP policies detect and protect sensitive data, but do not apply labels automatically.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing sensitivity label policies (which require user action or default labeling) with auto-labeling policies (which automatically scan and apply labels based on sensitive data patterns), leading candidates to choose option B incorrectly.
Detailed technical explanation
How to think about this question
Auto-labeling policies leverage the Microsoft 365 built-in sensitive information types (e.g., Credit Card Number, defined by regex and checksum validation) to scan content at rest (SharePoint, OneDrive) or in transit (Exchange). The policy can be configured for simulation mode first to test detection accuracy before enforcing label application, which is critical for avoiding over-classification in production environments.
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 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.
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: Auto-labeling policy — Auto-labeling policies in Microsoft Purview Information Protection automatically apply sensitivity labels to documents and emails that match specified conditions, such as the presence of credit card numbers. This policy uses sensitive information types (e.g., Credit Card Number) to scan content and apply the label without user intervention, meeting the requirement for automatic labeling.
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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