This MS-900 practice question tests your understanding of describe microsoft 365 apps and services. 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.
Your organization uses Microsoft 365 E5 licenses and wants to implement a data loss prevention (DLP) policy that blocks sharing of credit card numbers in email. Which Microsoft 365 admin center should you use to create and manage this DLP policy?
Microsoft Security Center
Why wrong: Focuses on security threats, not DLP.
Microsoft Entra admin center
Why wrong: Manages identity and access.
Microsoft Purview compliance portal
Centrally manages compliance policies including DLP.
Microsoft 365 admin center
Why wrong: Manages licensing and general admin tasks, not DLP.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Microsoft Purview compliance portal
The Microsoft Purview compliance portal is the correct admin center for creating and managing Data Loss Prevention (DLP) policies because it provides the unified compliance management interface for data protection, including DLP for Exchange Online email. DLP policies that block sharing of sensitive information like credit card numbers are configured under the 'Data loss prevention' section within the Purview portal, which leverages built-in sensitive information types and rules to enforce actions such as blocking email transmission.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Microsoft Security Center
Why it's wrong here
Focuses on security threats, not DLP.
Microsoft Entra admin center
Why it's wrong here
Manages identity and access.
Microsoft Purview compliance portal
Why this is correct
Centrally manages compliance policies including DLP.
Related concept
Read the scenario before looking for a memorised answer.
Microsoft 365 admin center
Why it's wrong here
Manages licensing and general admin tasks, not DLP.
Common exam traps
The trap here is that candidates often confuse the Microsoft 365 admin center (general admin tasks) with the Purview compliance portal (compliance-specific tasks), leading them to select the wrong portal for DLP policy management.
Detailed technical explanation
DLP policies in Microsoft Purview use sensitive information types (e.g., Credit Card Number based on Luhn algorithm validation) and policy tips to enforce actions like blocking or notifying users. Under the hood, Exchange Online evaluates DLP rules at transport time using the Exchange Transport Agent, which inspects email content and attachments against the defined conditions before delivery. A real-world scenario is when a user attempts to send a credit card number via email; the DLP policy can block the message and send an NDR (non-delivery report) to the sender, with an optional incident report to the compliance team.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
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FAQ
Describe Microsoft 365 apps and services — This question tests Describe Microsoft 365 apps and services — Read the scenario before looking for a memorised answer..
The correct answer is: Microsoft Purview compliance portal — The Microsoft Purview compliance portal is the correct admin center for creating and managing Data Loss Prevention (DLP) policies because it provides the unified compliance management interface for data protection, including DLP for Exchange Online email. DLP policies that block sharing of sensitive information like credit card numbers are configured under the 'Data loss prevention' section within the Purview portal, which leverages built-in sensitive information types and rules to enforce actions such as blocking email transmission.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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