The answer is Data Loss Prevention (DLP). This is correct because DLP policies in Microsoft Purview are designed to inspect email content in transit for sensitive data patterns, such as credit card numbers, and enforce real-time actions like blocking the message at the transport layer before it leaves the outbound queue. On the MS-102 exam, this scenario tests your understanding of how to configure a DLP policy with a sensitive information type for Credit Card Number and apply a block action with a policy tip, distinguishing it from features like Microsoft Defender for Office 365 or sensitivity labels, which do not block outbound email based on content patterns. A common trap is confusing DLP with retention policies or information barriers; remember that DLP is the only feature that actively scans and blocks email content in transit based on predefined sensitive data types. Memory tip: DLP stands for “Don’t Let Pass” — it stops credit card numbers from leaving your organization via email.
MS-102 Manage compliance by using Microsoft Purview Practice Question
This MS-102 practice question tests your understanding of manage compliance by using microsoft purview. 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.
A compliance officer needs to prevent users from accidentally sharing documents containing credit card numbers with external users via email. The block should occur at the time the user attempts to send the email. Which Microsoft Purview feature should be configured?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Data Loss Prevention (DLP)
Data Loss Prevention (DLP) is the correct feature because it is specifically designed to inspect email content in transit for sensitive data patterns, such as credit card numbers, and enforce policy actions like blocking the message at the transport layer. In Microsoft Purview, DLP policies can be configured to scan Exchange Online messages in real time using sensitive information types (e.g., Credit Card Number) and apply a block action with an optional policy tip to the user before the email leaves the outbound queue.
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.
✗
Communication compliance
Why it's wrong here
Communication compliance is for monitoring and reviewing messages for policy violations, not for actively blocking sending.
✓
Data Loss Prevention (DLP)
Why this is correct
DLP policies can be configured to detect sensitive info types in email and block the message from being sent, with options to allow override.
Related concept
Read the scenario before looking for a memorised answer.
✗
Records management
Why it's wrong here
Records management focuses on retention and disposition of content, not on preventing data leakage.
✗
Insider risk management
Why it's wrong here
Insider risk management detects patterns of risky behavior but does not provide real-time blocking of data sharing actions.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Communication compliance (which also monitors email) with DLP, but Communication compliance is a reactive auditing tool for policy violations, not a proactive, inline blocking mechanism for sensitive data.
Detailed technical explanation
How to think about this question
Under the hood, Microsoft Purview DLP for Exchange Online leverages transport rules and the Exchange Online Protection (EOP) pipeline to inspect message content using data classification service fingerprinting and regular expression matching against predefined sensitive information types. A subtle behavior is that DLP policy tips appear in Outlook clients (Win32, OWA, and mobile) only when the policy is configured with 'Notify user' and 'Block' actions, and the block can be overridden by the user if allowed, but the default block prevents the message from being delivered to external recipients. In a real-world scenario, if a finance employee attaches a spreadsheet with credit card numbers to an external email, DLP can block the send and log the incident in the Microsoft 365 Defender portal for investigation.
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 MS-102 question in full detail.
Manage compliance by using Microsoft Purview — This question tests Manage compliance by using Microsoft Purview — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Data Loss Prevention (DLP) — Data Loss Prevention (DLP) is the correct feature because it is specifically designed to inspect email content in transit for sensitive data patterns, such as credit card numbers, and enforce policy actions like blocking the message at the transport layer. In Microsoft Purview, DLP policies can be configured to scan Exchange Online messages in real time using sensitive information types (e.g., Credit Card Number) and apply a block action with an optional policy tip to the user before the email leaves the outbound queue.
What should I do if I get this MS-102 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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