MS-900 Describe Microsoft 365 apps and services Practice Question
This MS-900 practice question tests your understanding of describe microsoft 365 apps and services. 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.
A financial services company uses Microsoft 365 E5 and wants to implement a data loss prevention (DLP) policy that blocks users from sharing credit card numbers via email and Teams messages. The compliance team also wants to generate reports on policy violations. They are considering using Microsoft Purview. Which approach should they take to meet these requirements with minimum administrative overhead?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a unified DLP policy in the Microsoft Purview compliance portal that covers Exchange and Teams.
Option A is correct because Microsoft Purview DLP policies can be created in the Microsoft Purview compliance portal to monitor and block sensitive data in Exchange Online and Teams. Option B is wrong because creating individual policies per service is more overhead. Option C is wrong because Microsoft Defender for Cloud Apps is for cloud app security, not primary DLP for email and Teams. Option D is wrong because Microsoft Sentinel is a SIEM and not designed for DLP policy enforcement.
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.
✗
Create separate DLP policies in Exchange admin center and Teams admin center.
Why it's wrong here
More overhead; unified policy is available in Purview.
✓
Create a unified DLP policy in the Microsoft Purview compliance portal that covers Exchange and Teams.
Why this is correct
Purview DLP can apply to multiple workloads from a single policy.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Microsoft Sentinel to create analytics rules that detect sharing of credit card numbers.
Why it's wrong here
Sentinel detects threats but does not enforce DLP blocks.
✗
Use Microsoft Defender for Cloud Apps to create session policies for email and Teams.
Why it's wrong here
Defender for Cloud Apps focuses on cloud apps, not native DLP for email/Teams.
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 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-900 question in full detail.
Identify which MS-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 Microsoft 365 apps and services — This question tests Describe Microsoft 365 apps and services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a unified DLP policy in the Microsoft Purview compliance portal that covers Exchange and Teams. — Option A is correct because Microsoft Purview DLP policies can be created in the Microsoft Purview compliance portal to monitor and block sensitive data in Exchange Online and Teams. Option B is wrong because creating individual policies per service is more overhead. Option C is wrong because Microsoft Defender for Cloud Apps is for cloud app security, not primary DLP for email and Teams. Option D is wrong because Microsoft Sentinel is a SIEM and not designed for DLP policy enforcement.
What should I do if I get this MS-900 question wrong?
Identify which MS-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.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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