The answer is a DLP policy configured in the Microsoft Purview compliance portal, the built-in 'Credit Card Number' sensitive info type, and a rule action set to block the email. The sensitive info type is the core detection mechanism, using regular expressions and Luhn checksum validation to identify credit card patterns, while the policy and rule action enforce the actual block. On the MS-102 exam, this tests your understanding that a DLP policy is useless without a defined sensitive info type to scan for and a configured action to apply—a common trap is assuming the policy alone is enough. Remember the three-legged stool: Policy, Type, Action. For memory, think "PTA" (Policy, Type, Action) to ensure you never miss a required component when blocking credit card numbers in email.
MS-102 Deploy and manage a Microsoft 365 tenant Practice Question
This MS-102 practice question tests your understanding of deploy and manage a microsoft 365 tenant. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 uses Microsoft Purview to enforce data loss prevention (DLP) policies. You need to block users from sharing credit card numbers via email. Which THREE components are required to implement this policy?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The built-in 'Credit Card Number' sensitive info type.
The built-in 'Credit Card Number' sensitive info type is required because Microsoft Purview DLP policies rely on predefined or custom sensitive information types to detect specific data patterns, such as credit card numbers, using regular expressions and checksums. Without this type, the DLP policy would not know what content to scan for in emails.
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.
✓
The built-in 'Credit Card Number' sensitive info type.
Why this is correct
DLP policies use sensitive info types to detect patterns like credit card numbers.
Related concept
Read the scenario before looking for a memorised answer.
✓
A sensitivity label that identifies credit card information.
Why this is correct
Sensitivity labels help classify data; DLP can use them as conditions.
Related concept
Read the scenario before looking for a memorised answer.
✗
Microsoft Defender for Cloud Apps.
Why it's wrong here
Defender for Cloud Apps is not required for email DLP.
✗
Microsoft Entra ID P2 licenses.
Why it's wrong here
DLP policies do not require Entra ID P2; they are part of Microsoft 365 compliance.
✓
A DLP policy configured in the Microsoft Purview compliance portal.
Why this is correct
The DLP policy defines the rules and actions to block sharing.
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 the requirement for a sensitivity label (which is optional for DLP and used for classification, not detection) with the mandatory sensitive info type, or they assume Defender for Cloud Apps is needed for email DLP, when it is only for cloud app shadow IT scenarios.
Detailed technical explanation
How to think about this question
The 'Credit Card Number' sensitive info type uses a regex pattern (e.g., `(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|3[47][0-9]{13}|6(?:011|5[0-9]{2})[0-9]{12})`) combined with a Luhn checksum validation to reduce false positives. DLP policies in the Purview compliance portal apply transport rules in Exchange Online via mail flow rules, scanning email bodies and attachments for these patterns, and can enforce actions like blocking or notifying users.
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.
Deploy and manage a Microsoft 365 tenant — This question tests Deploy and manage a Microsoft 365 tenant — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The built-in 'Credit Card Number' sensitive info type. — The built-in 'Credit Card Number' sensitive info type is required because Microsoft Purview DLP policies rely on predefined or custom sensitive information types to detect specific data patterns, such as credit card numbers, using regular expressions and checksums. Without this type, the DLP policy would not know what content to scan for in emails.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Your organization is implementing Microsoft Purview Data Loss Prevention (DLP). You need to ensure that sensitive data such as credit card numbers cannot be shared externally via email. Which THREE components should you configure?
medium
✓ A.Define sensitive information types for credit card numbers
B.Enable Microsoft Purview Insider Risk Management
✓ C.Configure DLP rule actions to block external sharing
D.Configure a retention policy for email
✓ E.Create a DLP policy in Microsoft Purview
Why A: A is correct because sensitive information types (SITs) are predefined or custom patterns that detect specific data like credit card numbers (e.g., regex matching major credit card formats). Defining the SIT for credit card numbers allows the DLP policy to identify this sensitive content in emails, which is the first step before any action can be taken.
Last reviewed: Jun 24, 2026
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This MS-102 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the MS-102 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.