- A
Microsoft Defender for Cloud
Why wrong: Defender for Cloud is for securing cloud workloads (VMs, databases) with posture management and threat detection; it does not discover or assess cloud apps.
- B
Microsoft Defender for Cloud Apps
Defender for Cloud Apps is a CASB that discovers all cloud apps, assesses their risk using 80+ factors, and allows control over sanctioned apps.
- C
Microsoft Defender for Endpoint
Why wrong: Defender for Endpoint protects devices from malware and attacks; it does not discover cloud apps.
- D
Microsoft Purview Data Loss Prevention (DLP)
Why wrong: DLP can prevent data leakage but does not discover shadow IT or assess risk of cloud apps.
Question 654 of 1,411
Microsoft Defender for Cloud Apps: Shadow IT Discovery and Risk Assessment
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 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?
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 (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.
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 Cloud
Why it's wrong here
Defender for Cloud is for securing cloud workloads (VMs, databases) with posture management and threat detection; it does not discover or assess cloud apps.
When this WOULD be correct
A question asking for a solution to assess and improve the security posture of Azure resources (e.g., virtual machines, storage accounts) by identifying misconfigurations, enabling compliance standards, and providing threat detection for cloud workloads. For example: 'Which Microsoft solution should be used to continuously monitor and improve the security of Azure VMs and storage accounts?'
- ✓
Microsoft Defender for Cloud Apps
Why this is correct
Defender for Cloud Apps is a CASB that discovers all cloud apps, assesses their risk using 80+ factors, and allows control over sanctioned apps.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Microsoft Defender for Endpoint
Why it's wrong here
Defender for Endpoint protects devices from malware and attacks; it does not discover cloud apps.
When this WOULD be correct
An exam question asking for a solution to detect and respond to advanced threats on endpoints (e.g., malware, ransomware) and investigate compromised devices would make Defender for Endpoint the correct answer.
- ✗
Microsoft Purview Data Loss Prevention (DLP)
Why it's wrong here
DLP can prevent data leakage but does not discover shadow IT or assess risk of cloud apps.
When this WOULD be correct
Microsoft Purview DLP would be correct in a scenario where an organization needs to prevent accidental sharing of sensitive data (e.g., credit card numbers or PII) across sanctioned apps like Microsoft 365 and endpoints, without requiring cloud app discovery or risk scoring. For example: 'A company wants to block emails containing social security numbers from being sent externally.'
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The SC-900 exam frequently reuses these exact scenarios with slightly different constraints.
✓Microsoft Defender for Cloud AppsCorrect answer▾
Why this is correct
Defender for Cloud Apps is a CASB that discovers all cloud apps, assesses their risk using 80+ factors, and allows control over sanctioned apps.
✗Microsoft Defender for CloudWrong answer — click to see why▾
Why this is wrong here
Microsoft Defender for Cloud is a cloud security posture management (CSPM) and workload protection solution, not designed to discover cloud apps, assess risk scores, or control data sharing across sanctioned and unsanctioned apps. It focuses on securing cloud infrastructure (e.g., VMs, databases) rather than SaaS application governance.
★ When this WOULD be the correct answer
A question asking for a solution to assess and improve the security posture of Azure resources (e.g., virtual machines, storage accounts) by identifying misconfigurations, enabling compliance standards, and providing threat detection for cloud workloads. For example: 'Which Microsoft solution should be used to continuously monitor and improve the security of Azure VMs and storage accounts?'
Why candidates choose this
The name 'Defender for Cloud' suggests it covers all cloud security needs, leading candidates to assume it includes app discovery and risk assessment. The lack of familiarity with the specific capabilities of Microsoft Defender for Cloud Apps (formerly Cloud App Security) causes confusion.
✗Microsoft Defender for EndpointWrong answer — click to see why▾
Why this is wrong here
Microsoft Defender for Endpoint focuses on endpoint protection (antivirus, EDR) and does not provide cloud app discovery, risk assessment, or control over data sharing in cloud applications like Microsoft 365.
★ When this WOULD be the correct answer
An exam question asking for a solution to detect and respond to advanced threats on endpoints (e.g., malware, ransomware) and investigate compromised devices would make Defender for Endpoint the correct answer.
Why candidates choose this
Candidates may confuse Defender for Endpoint with Defender for Cloud Apps because both have 'Defender' in the name and relate to security, but they serve different domains (endpoints vs. cloud apps).
✗Microsoft Purview Data Loss Prevention (DLP)Wrong answer — click to see why▾
Why this is wrong here
Microsoft Purview Data Loss Prevention (DLP) focuses on preventing data leakage by enforcing policies on sensitive data, but it does not discover cloud applications, assess risk scores, or identify users of unsanctioned apps. The question requires cloud app discovery and risk assessment, which are capabilities of Defender for Cloud Apps, not DLP.
★ When this WOULD be the correct answer
Microsoft Purview DLP would be correct in a scenario where an organization needs to prevent accidental sharing of sensitive data (e.g., credit card numbers or PII) across sanctioned apps like Microsoft 365 and endpoints, without requiring cloud app discovery or risk scoring. For example: 'A company wants to block emails containing social security numbers from being sent externally.'
Why candidates choose this
Candidates may confuse DLP's data protection capabilities with the broader cloud app security requirements, especially since the question mentions controlling data sharing within sanctioned apps, which is a DLP function. However, they overlook that the primary need is discovery and risk assessment, which DLP does not provide.
Analysis generated from the official SC-900blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Microsoft Defender for Cloud (a CSPM tool for Azure) with Microsoft Defender for Cloud Apps (a CASB), or they assume that Purview DLP alone can discover and risk-assess unsanctioned apps, when in fact DLP only controls data after the app is already identified and integrated.
Detailed technical explanation
How to think about this question
Under the hood, Defender for Cloud Apps uses Cloud Discovery by integrating with network appliances (e.g., Zscaler, Palo Alto) via log uploads or deploying the Microsoft Defender for Cloud Apps log collector to parse traffic logs (e.g., Common Event Format, RFC 5424). It then applies a proprietary risk scoring algorithm that evaluates factors like SOC 2 certification, PCI DSS compliance, and data-at-rest encryption (AES-256). For controlling data sharing, it uses Conditional Access App Control to enforce real-time session policies (e.g., block download, restrict copy/paste) by proxying traffic through reverse proxy architecture, which works with any SAML or OAuth-enabled app.
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 (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.
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
2 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 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?
medium- A.Microsoft Defender for Endpoint
- ✓ B.Microsoft Defender for Cloud Apps
- C.Microsoft Defender for Office 365
- D.Microsoft Defender for Identity
Why B: 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.
Variation 2. 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.
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Last reviewed: Jun 11, 2026
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