- A
Microsoft Defender for Endpoint
Why wrong: Defender for Endpoint protects endpoints (devices) from threats, but does not provide cloud app discovery or control over cloud app usage.
- B
Microsoft Defender for Cloud Apps
Defender for Cloud Apps offers cloud app discovery (shadow IT), risk assessment, and the ability to apply DLP and governance policies to sanctioned and unsanctioned cloud apps.
- C
Microsoft Defender for Office 365
Why wrong: Defender for Office 365 protects Exchange Online, SharePoint, and Teams from malicious threats like phishing and malware, but does not discover general cloud app usage.
- D
Microsoft Defender for Identity
Why wrong: Defender for Identity monitors on-premises Active Directory for advanced threats (e.g., lateral movement), not cloud application discovery.
Quick Answer
The answer is Microsoft Defender for Cloud Apps, the correct choice because it functions as a Cloud Access Security Broker (CASB) that delivers the three core capabilities described: cloud discovery to uncover shadow IT, risk assessment based on over 80 risk factors, and data control through data loss prevention (DLP) policies for sanctioned apps like Box or Dropbox. On the SC-900 exam, this question tests your understanding of how a CASB provides visibility, risk evaluation, and governance across cloud environments, often appearing as a scenario where you must match the solution to the need for both discovery and enforcement. A common trap is confusing Microsoft Defender for Cloud Apps with Microsoft Purview, but remember that Purview focuses on data governance and compliance, not real-time cloud app discovery and risk scoring. Memory tip: think “Discover, Assess, Control” as the three pillars of a CASB, and you will always pick Defender for Cloud Apps.
SC-900 Practice Question: Describe the capabilities of Microsoft security solutions
This SC-900 practice question tests your understanding of describe the capabilities of microsoft security solutions. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 company wants to discover which cloud applications are being used by employees, assess the risk of those apps, and control data sharing in sanctioned apps like Box or Dropbox. Which Microsoft security solution should they implement?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Microsoft Defender for Cloud Apps
Microsoft Defender for Cloud Apps is a Cloud Access Security Broker (CASB) that provides visibility into shadow IT by discovering cloud app usage, assessing risk based on over 80 risk factors, and enforcing data loss prevention (DLP) policies to control data sharing in sanctioned apps like Box or Dropbox. It integrates with cloud providers via API connectors to monitor and govern data in real time.
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.
- ✗
Microsoft Defender for Endpoint
Why it's wrong here
Defender for Endpoint protects endpoints (devices) from threats, but does not provide cloud app discovery or control over cloud app usage.
- ✓
Microsoft Defender for Cloud Apps
Why this is correct
Defender for Cloud Apps offers cloud app discovery (shadow IT), risk assessment, and the ability to apply DLP and governance policies to sanctioned and unsanctioned cloud apps.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Microsoft Defender for Office 365
Why it's wrong here
Defender for Office 365 protects Exchange Online, SharePoint, and Teams from malicious threats like phishing and malware, but does not discover general cloud app usage.
- ✗
Microsoft Defender for Identity
Why it's wrong here
Defender for Identity monitors on-premises Active Directory for advanced threats (e.g., lateral movement), not cloud application discovery.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing the CASB functionality of Defender for Cloud Apps with the endpoint-focused or email-specific protections of other Defender products, leading candidates to pick Defender for Office 365 because it also controls data sharing, but only within Microsoft 365, not third-party apps like Box or Dropbox.
Detailed technical explanation
How to think about this question
Defender for Cloud Apps uses the Cloud App Catalog with over 16,000 apps, each scored on a risk scale from 1 to 10 based on factors like encryption standards (e.g., TLS 1.2), SOC 2 compliance, and data residency. It can enforce session-level controls via Conditional Access App Control, which proxies user traffic to sanctioned apps to block downloads or require encryption, using reverse proxy architecture with Azure AD integration.
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.
What to study next
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FAQ
Questions learners often ask
What does this SC-900 question test?
Describe the capabilities of Microsoft security solutions — This question tests Describe the capabilities of Microsoft security solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Microsoft Defender for Cloud Apps — Microsoft Defender for Cloud Apps is a Cloud Access Security Broker (CASB) that provides visibility into shadow IT by discovering cloud app usage, assessing risk based on over 80 risk factors, and enforcing data loss prevention (DLP) policies to control data sharing in sanctioned apps like Box or Dropbox. It integrates with cloud providers via API connectors to monitor and govern data in real time.
What should I do if I get this SC-900 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 →
Same concept, more angles
8 more ways this is tested on SC-900
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 team wants to discover all cloud applications being used by employees, including unsanctioned file sharing and collaboration apps. They plan to analyze traffic logs from their network firewall to identify usage patterns and assess each app's risk level. Which feature of Microsoft Defender for Cloud Apps should they enable?
medium- ✓ A.Cloud Discovery
- B.App Connectors
- C.Conditional Access App Control
- D.Information Protection
Why A: Cloud Discovery is the correct feature because it analyzes traffic logs from network firewalls and proxies to identify all cloud applications in use, including unsanctioned ones. It uses the Microsoft Defender for Cloud Apps catalog to assess each app's risk level based on factors like security posture, compliance certifications, and industry standards. This directly matches the scenario of discovering unsanctioned file sharing and collaboration apps from firewall logs.
Variation 2. A security team wants to discover which cloud applications are being used by employees, including unsanctioned file-sharing and collaboration apps. They plan to upload network traffic logs from their firewall to analyze app usage and risk levels. Which feature of Microsoft Defender for Cloud Apps should they enable?
medium- A.App Governance
- ✓ B.Cloud Discovery
- C.Conditional Access App Control
- D.Information Protection
Why B: Cloud Discovery is the correct feature because it analyzes network traffic logs (uploaded from firewalls or proxies) to identify which cloud applications are in use, including unsanctioned file-sharing and collaboration apps. It provides a risk score for each discovered app, enabling the security team to assess usage and enforce governance policies.
Variation 3. A company wants to gain visibility into the cloud applications that employees are using (e.g., unsanctioned SaaS apps), assess the risk level of each app based on multiple factors, and block access to high-risk applications. Which Microsoft security solution should they deploy?
medium- A.Microsoft Defender for Endpoint
- B.Microsoft Defender for Office 365
- ✓ C.Microsoft Defender for Cloud Apps
- D.Microsoft Sentinel
Why C: Microsoft Defender for Cloud Apps is a Cloud Access Security Broker (CASB) that provides visibility into cloud application usage, assesses risk based on factors like compliance, app store ratings, and security controls, and can block access to high-risk apps via reverse proxy or API integration. This directly matches the requirement to discover unsanctioned SaaS apps and enforce access controls.
Variation 4. A company wants to gain visibility into the use of unsanctioned cloud applications (shadow IT) within their organization. The security team has access to network proxy logs that show traffic to various cloud services. They want to use a Microsoft security solution to analyze these logs and identify which cloud apps are being used, by whom, and how much data is being consumed. Which capability of Microsoft Defender for Cloud Apps should they use?
hard- A.App governance
- ✓ B.Cloud Discovery
- C.Conditional Access App Control
- D.App Connectors
Why B: Cloud Discovery in Microsoft Defender for Cloud Apps analyzes network proxy logs (or traffic logs from firewalls and proxies) to identify unsanctioned cloud app usage (shadow IT). It provides visibility into which cloud apps are being used, by which users, and how much data is consumed, directly matching the company's requirement to analyze logs for shadow IT detection.
Variation 5. A company wants to gain visibility into which cloud applications are being used by employees (shadow IT) and assess the risk level of each app. They use Microsoft Defender for Cloud Apps. Which feature should they enable to discover and analyze these apps?
medium- A.App Governance
- ✓ B.Cloud Discovery
- C.Conditional Access App Control
- D.OAuth app policies
Why B: Cloud Discovery is the correct feature because it analyzes traffic logs against the Microsoft Defender for Cloud Apps catalog of over 31,000 cloud apps to identify shadow IT usage. It provides risk scores based on factors like security certifications, data encryption, and compliance standards, enabling the company to assess each app's risk level.
Variation 6. A security team wants to discover which cloud applications (such as Dropbox, Salesforce, or unsanctioned file-sharing apps) are being used by employees, even if those apps are not sanctioned by IT. They need to analyze usage patterns, risk levels, and identify potential shadow IT. Which feature of Microsoft Defender for Cloud Apps should they enable?
medium- A.App Connectors (API connectors)
- ✓ B.Cloud Discovery
- C.Conditional Access App Control
- D.Microsoft Defender for Endpoint
Why B: Cloud Discovery is the correct feature because it analyzes traffic logs from firewalls and proxies to identify cloud app usage, including unsanctioned apps like Dropbox or Salesforce, without requiring API integration. It provides risk scores, usage patterns, and shadow IT detection by comparing discovered apps against Microsoft's cloud app catalog of over 31,000 apps.
Variation 7. A large enterprise uses a variety of cloud applications, including sanctioned apps like Microsoft 365 and unsanctioned apps that employees adopted without IT approval. The security team wants to discover all cloud applications in use, assess each app's risk score based on more than 80 risk factors, and control data sharing within sanctioned apps to prevent data leakage. Additionally, they need to identify which users are using a new, unknown file-sharing service. Which Microsoft security solution should be deployed to meet these requirements?
hard- A.Microsoft Defender for Cloud
- ✓ B.Microsoft Defender for Cloud Apps
- C.Microsoft Defender for Endpoint
- D.Microsoft Purview Data Loss Prevention (DLP)
Why B: Microsoft Defender for Cloud Apps (formerly Microsoft Cloud App Security) is a Cloud Access Security Broker (CASB) that provides visibility into both sanctioned and unsanctioned cloud apps through its Cloud Discovery feature. It assesses risk scores based on over 80 risk factors (e.g., encryption standards, data residency, and compliance certifications) and enables data sharing controls via session policies (e.g., Conditional Access App Control) to prevent data leakage. It also supports anomaly detection to identify users of new, unknown file-sharing services by analyzing traffic logs from network appliances or endpoints.
Variation 8. A security team wants to discover all cloud apps being used by employees, including unsanctioned personal apps like unauthorized file-sharing services. They plan to analyze firewall logs to identify traffic patterns and assess each app's risk score. Which feature of Microsoft Defender for Cloud Apps should they enable?
medium- ✓ A.Cloud Discovery
- B.App Governance
- C.Information Protection
- D.Conditional Access App Control
Why A: Cloud Discovery is the correct feature because it analyzes traffic logs (e.g., from firewalls or proxies) to identify all cloud apps in use, including unsanctioned personal apps like unauthorized file-sharing services. It then assesses each app's risk score based on over 80 risk factors, such as encryption standards and data residency, enabling the security team to discover and evaluate shadow IT.
Last reviewed: Jun 11, 2026
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