The correct answer is that Microsoft Purview Data Loss Prevention (DLP) can detect passport numbers in SharePoint Online documents, along with sensitive data in Exchange emails and Teams messages. This works because Purview DLP uses deep content analysis and pattern matching to identify sensitive information types—like passport numbers, credit cards, or social security numbers—across Microsoft 365 services, then applies policies to prevent accidental sharing. On the SC-900 exam, this question tests your understanding that DLP focuses on data-in-motion and data-at-rest within Microsoft’s ecosystem, not on blocking network traffic or detecting malware, which are handled by separate security tools like network firewalls and Microsoft Defender for Endpoint. A common trap is confusing DLP with endpoint security; remember that DLP is about data classification and policy enforcement, not threat detection. For a memory tip, think “DLP = Data Leak Prevention, not Defender or Network Patrol.”
SC-900 Practice Question: Describe the concepts of security, compliance, and identity
This SC-900 practice question tests your understanding of describe the concepts of security, compliance, and identity. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Which THREE of the following are capabilities of Microsoft Purview Data Loss Prevention (DLP)? (Choose three.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Detect credit card numbers in Exchange Online emails
Options A, C, and D are correct. DLP can detect sensitive data in Exchange emails, SharePoint documents, and Teams messages. Option B is wrong because DLP does not block network traffic; that is a network security function. Option E is wrong because DLP does not detect malware; that is Microsoft Defender for Endpoint.
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.
✓
Detect credit card numbers in Exchange Online emails
Why this is correct
DLP can scan email content for sensitive info.
Related concept
Read the scenario before looking for a memorised answer.
✗
Block network traffic from suspicious IP addresses
Why it's wrong here
Network blocking is done by firewalls or network security groups.
✓
Detect sensitive information in Microsoft Teams messages
Why this is correct
DLP can monitor Teams chats and channels.
Related concept
Read the scenario before looking for a memorised answer.
✗
Detect malware in email attachments
Why it's wrong here
Malware detection is done by Defender for Office 365.
✓
Detect passport numbers in SharePoint Online documents
Why this is correct
DLP scans SharePoint for sensitive data.
Related concept
Read the scenario before looking for a memorised answer.
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 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 SC-900 question in full detail.
Identify which SC-900 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.
Describe the concepts of security, compliance, and identity — This question tests Describe the concepts of security, compliance, and identity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Detect credit card numbers in Exchange Online emails — Options A, C, and D are correct. DLP can detect sensitive data in Exchange emails, SharePoint documents, and Teams messages. Option B is wrong because DLP does not block network traffic; that is a network security function. Option E is wrong because DLP does not detect malware; that is Microsoft Defender for Endpoint.
What should I do if I get this SC-900 question wrong?
Identify which SC-900 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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