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. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 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?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Define sensitive information types for credit card numbers
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.
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.
✓
Define sensitive information types for credit card numbers
Why this is correct
Sensitive info types are used to detect credit card numbers.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable Microsoft Purview Insider Risk Management
Why it's wrong here
Insider Risk Management is for user risk, not DLP.
✓
Configure DLP rule actions to block external sharing
Why this is correct
Actions enforce the policy by blocking or warning.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure a retention policy for email
Why it's wrong here
Retention policies do not prevent sharing.
✓
Create a DLP policy in Microsoft Purview
Why this is correct
DLP policies contain rules and actions for data protection.
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 may confuse Insider Risk Management (a behavior-based tool) with DLP (a content-based policy), or think a retention policy is needed to block sharing, when in fact DLP policies alone handle detection and enforcement via SITs and rule actions.
Detailed technical explanation
How to think about this question
DLP policies in Microsoft Purview use a three-part structure: scope (e.g., Exchange Online), conditions (e.g., content contains a credit card SIT), and actions (e.g., block external sharing with a policy tip). The SIT for credit card numbers leverages the Luhn algorithm and pattern matching for major card issuers (Visa, MasterCard, etc.), and the DLP rule action 'Block' uses Exchange transport rules to prevent message delivery to external recipients, generating an incident report in the DLP alerts dashboard.
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: Define sensitive information types for credit card numbers — 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.
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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