The answer is an anomaly detection policy. This is correct because Microsoft Defender for Cloud Apps uses machine learning to establish a baseline of normal user behavior, and an anomaly detection policy specifically identifies deviations from that baseline—such as a user downloading an abnormally large number of files from SharePoint Online in a short period—by triggering alerts on unusual spikes in volume or rate. On the MS-102 exam, this concept tests your understanding of how Defender for Cloud Apps applies behavioral analytics to detect insider threats or compromised accounts, often appearing in scenario-based questions where you must choose between activity, session, or anomaly policies. A common trap is confusing anomaly detection with activity policies, but remember: activity policies look for specific, predefined actions (like a specific IP range), while anomaly detection relies on learned baselines. Memory tip: think "anomaly = abnormal baseline deviation," and you will spot the correct answer every time.
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.
A security administrator wants to detect unusual user activity, such as a user downloading an abnormally large number of files from SharePoint Online in a short period. Which Microsoft Defender for Cloud Apps feature should be used to create a policy for this behavior?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Anomaly detection policy
Option C is correct because Microsoft Defender for Cloud Apps uses anomaly detection policies to identify unusual user behavior, such as a user downloading an abnormally large number of files from SharePoint Online in a short period. These policies leverage machine learning to establish a baseline of normal activity and then trigger alerts when deviations occur, like a spike in download volume or rate.
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.
✗
Cloud Discovery
Why it's wrong here
Cloud Discovery identifies cloud apps used in the organization but does not monitor file download anomalies.
✗
Conditional Access App Control
Why it's wrong here
This enforces conditional access policies on cloud apps, but does not natively create anomaly detection behaviors.
✓
Anomaly detection policy
Why this is correct
Anomaly detection policies can be configured to alert on unusual file download activities based on user context and volume.
Related concept
Read the scenario before looking for a memorised answer.
✗
App permissions
Why it's wrong here
App permissions allows review and revocation of OAuth applications, not detection of user behavior anomalies.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse anomaly detection policies with Cloud Discovery, mistakenly thinking Cloud Discovery detects unusual user behavior, when in fact it only identifies unsanctioned cloud apps and services.
Detailed technical explanation
How to think about this question
Anomaly detection policies in Defender for Cloud Apps use unsupervised machine learning models that analyze user activity logs (e.g., from SharePoint Online via the Office 365 connector) to establish a per-user baseline for metrics like file download count, volume, and time distribution. When a user's activity exceeds a threshold (e.g., 3 standard deviations from the mean), the policy triggers an alert; this can be tuned with custom sensitivity levels. A real-world scenario might involve a compromised account exfiltrating data via rapid bulk downloads, where the anomaly detection policy catches the deviation even if the user has legitimate access.
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 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.
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: Anomaly detection policy — Option C is correct because Microsoft Defender for Cloud Apps uses anomaly detection policies to identify unusual user behavior, such as a user downloading an abnormally large number of files from SharePoint Online in a short period. These policies leverage machine learning to establish a baseline of normal activity and then trigger alerts when deviations occur, like a spike in download volume or rate.
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. A security administrator is configuring Microsoft Defender for Cloud Apps. The administrator needs to discover which cloud apps are being used in the organization and then block usage of unsanctioned apps in real time using a reverse proxy. Which two Defender for Cloud Apps features must be configured? (Select the two correct options.)
hard
✓ A.Cloud Discovery
B.App governance
✓ C.Conditional Access App Control
D.OAuth app permissions
Why A: Cloud Discovery is the correct feature because it identifies which cloud apps are in use by analyzing traffic logs from the organization's network. This provides the visibility needed to determine which apps are unsanctioned. Conditional Access App Control is the correct feature because it uses a reverse proxy to enforce real-time access controls, blocking unsanctioned apps at the session level.
Variation 2. A security administrator needs to discover which cloud apps are being used in the organization and then block usage of unsanctioned apps in real time using a reverse proxy. Which two Microsoft Defender for Cloud Apps features must be configured to meet these requirements? (Select all that apply.)
hard
✓ A.Cloud Discovery
B.App Connectors
✓ C.Conditional Access App Control
D.API connectors
Why A: Cloud Discovery (A) is correct because it analyzes traffic logs from your network to identify all cloud apps in use, providing visibility into sanctioned and unsanctioned apps. Conditional Access App Control (C) is correct because it enforces real-time access controls via a reverse proxy, allowing you to block unsanctioned apps as users attempt to access them.
Variation 3. A security administrator needs to block unsanctioned cloud apps in real time using a reverse proxy. Which two Microsoft Defender for Cloud Apps components must be configured?
medium
A.Cloud Discovery
✓ B.Conditional Access App Control
C.App governance
✓ D.Session control policies
Why B: Conditional Access App Control (B) is the reverse proxy component in Microsoft Defender for Cloud Apps that enforces real-time session-level monitoring and control of cloud app access. Session control policies (D) are the specific policy objects that define the actions (e.g., block download, block access) applied through that reverse proxy. Together, they enable blocking unsanctioned cloud apps in real time by intercepting user traffic via the reverse proxy architecture.
Last reviewed: Jun 11, 2026
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