The correct answer is to sanction the app in the Cloud App Catalog, create a session policy to block uploads and downloads, and create an access policy to block access. Sanctioning the app is the essential first step because it flags the app for policy enforcement within Microsoft Defender for Cloud Apps; without this designation, session and access policies cannot be applied to the app. This combination directly addresses the need to detect and block a high-risk cloud app session access policy by using conditional access controls that intercept user activity in real time. On the MS-102 exam, this scenario tests your understanding of how Cloud App Catalog classifications interact with policy-based enforcement—a common trap is assuming that unsanctioning alone blocks the app, when in fact policies must be explicitly configured. A helpful memory tip is "Sanction first, then session and access to block," reminding you that sanctioning enables the two blocking policies, while discovery policies only identify risks without enforcing blocks.
MS-102 Practice Question: Manage security and threats by using Microsoft Defender XDR
This MS-102 practice question tests your understanding of manage security and threats by using microsoft defender xdr. 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 Defender for Cloud Apps. You need to detect and block the use of a newly discovered cloud app that is classified as 'high risk' by the Cloud App Catalog. Which THREE actions should you take? (Choose three.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a session policy to block downloads or uploads for the app.
A, B, and D are correct. Sanctioning the app is required to apply policies. A session policy can block uploads/downloads. An access policy can block access. C is wrong because unsanctioning the app alone does not block it; policies must be enforced. E is wrong because the app discovery policy only identifies apps, not blocks them.
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 a session policy to block downloads or uploads for the app.
Why this is correct
Session policies can control actions in real-time.
Related concept
Read the scenario before looking for a memorised answer.
✓
Create an access policy to block access for the app.
Why this is correct
Access policies can block logon to the app.
Related concept
Read the scenario before looking for a memorised answer.
✓
Sanction the app in the Cloud App Catalog.
Why this is correct
Sanctioning enables applying policies to the app.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create an app discovery policy for the app.
Why it's wrong here
App discovery policies only generate alerts.
✗
Unsanction the app in the Cloud App Catalog.
Why it's wrong here
Unsanctioning alone does not block access.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MS-102 question in full detail.
Identify which MS-102 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.
Manage security and threats by using Microsoft Defender XDR — This question tests Manage security and threats by using Microsoft Defender XDR — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a session policy to block downloads or uploads for the app. — A, B, and D are correct. Sanctioning the app is required to apply policies. A session policy can block uploads/downloads. An access policy can block access. C is wrong because unsanctioning the app alone does not block it; policies must be enforced. E is wrong because the app discovery policy only identifies apps, not blocks them.
What should I do if I get this MS-102 question wrong?
Identify which MS-102 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.
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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