- A
Microsoft Defender for Cloud
Why wrong: Defender for Cloud secures cloud workloads (VMs, containers, etc.) across Azure and hybrid environments, not specifically endpoint devices.
- B
Microsoft Defender for Endpoint
Defender for Endpoint provides next-generation protection, endpoint detection and response (EDR), and device isolation capabilities for device security.
- C
Microsoft Defender for Cloud Apps
Why wrong: Defender for Cloud Apps is a cloud access security broker (CASB) for controlling access to SaaS applications, not endpoint protection.
- D
Microsoft Defender for Office 365
Why wrong: Defender for Office 365 protects email, SharePoint, OneDrive, and Teams from threats like phishing and malware in collaboration content.
Question 347 of 1,411
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.
An organization wants to protect its fleet of Windows 10 laptops from advanced malware and ransomware. The solution must detect suspicious behavior (e.g., a process encrypting files) and provide security teams with the ability to isolate an infected device from the network for investigation. Which Microsoft security solution should they deploy?
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 Endpoint
Microsoft Defender for Endpoint (MDE) is the correct solution because it provides endpoint detection and response (EDR) capabilities, including behavioral-based detection of advanced malware and ransomware (e.g., detecting a process encrypting files via machine learning and behavioral analytics). It also includes automated investigation and remediation features, such as the ability to isolate an infected device from the network (device isolation) to prevent lateral movement while allowing security teams to investigate.
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 secures cloud workloads (VMs, containers, etc.) across Azure and hybrid environments, not specifically endpoint devices.
When this WOULD be correct
An organization wants to assess and improve the security posture of its Azure virtual machines and detect threats across hybrid cloud workloads. They need a solution that provides security recommendations and just-in-time VM access. In that scenario, Microsoft Defender for Cloud would be the correct answer.
- ✓
Microsoft Defender for Endpoint
Why this is correct
Defender for Endpoint provides next-generation protection, endpoint detection and response (EDR), and device isolation capabilities for device security.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Microsoft Defender for Cloud Apps
Why it's wrong here
Defender for Cloud Apps is a cloud access security broker (CASB) for controlling access to SaaS applications, not endpoint protection.
When this WOULD be correct
An organization wants to gain visibility into shadow IT, control access to cloud apps, and protect data in SaaS applications like Office 365 or Salesforce. They need to detect anomalous behavior in cloud app usage and enforce policies such as blocking downloads from unmanaged devices.
- ✗
Microsoft Defender for Office 365
Why it's wrong here
Defender for Office 365 protects email, SharePoint, OneDrive, and Teams from threats like phishing and malware in collaboration content.
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 EndpointCorrect answer▾
Why this is correct
Defender for Endpoint provides next-generation protection, endpoint detection and response (EDR), and device isolation capabilities for device security.
✗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 cloud workload protection platform (CWPP) for Azure, on-premises, and other cloud resources. It does not provide endpoint detection and response (EDR) capabilities like behavior monitoring and device isolation for Windows 10 laptops.
★ When this WOULD be the correct answer
An organization wants to assess and improve the security posture of its Azure virtual machines and detect threats across hybrid cloud workloads. They need a solution that provides security recommendations and just-in-time VM access. In that scenario, Microsoft Defender for Cloud would be the correct answer.
Why candidates choose this
Candidates may confuse 'Defender for Cloud' with endpoint protection because the name includes 'Defender' and 'Cloud', assuming it covers all cloud-connected devices, including laptops. They may not realize it focuses on cloud infrastructure rather than endpoint devices.
✗Microsoft Defender for Cloud AppsWrong answer — click to see why▾
Why this is wrong here
Microsoft Defender for Cloud Apps is a cloud access security broker (CASB) that focuses on securing cloud applications and services, not on endpoint-level malware detection or device isolation for Windows 10 laptops.
★ When this WOULD be the correct answer
An organization wants to gain visibility into shadow IT, control access to cloud apps, and protect data in SaaS applications like Office 365 or Salesforce. They need to detect anomalous behavior in cloud app usage and enforce policies such as blocking downloads from unmanaged devices.
Why candidates choose this
Candidates may confuse 'cloud apps' with 'endpoint protection' or assume that any Microsoft Defender product provides comprehensive malware defense, overlooking the specific endpoint focus required for laptop protection and isolation.
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 cloud workload protection tool) with endpoint protection, or they assume Defender for Office 365 covers all devices, when in fact only Defender for Endpoint provides the specific behavioral detection and device isolation for Windows 10 laptops.
Detailed technical explanation
How to think about this question
Under the hood, MDE uses a combination of cloud-delivered machine learning models and sensor-based behavioral monitoring on the endpoint (via the Microsoft Defender Antivirus engine and the EDR sensor) to detect file-encryption patterns typical of ransomware. Device isolation in MDE works by blocking all inbound and outbound network traffic at the OS level (except traffic to the MDE cloud service), effectively quarantining the device while preserving the investigation trail via the Microsoft 365 Defender portal.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
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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 Endpoint — Microsoft Defender for Endpoint (MDE) is the correct solution because it provides endpoint detection and response (EDR) capabilities, including behavioral-based detection of advanced malware and ransomware (e.g., detecting a process encrypting files via machine learning and behavioral analytics). It also includes automated investigation and remediation features, such as the ability to isolate an infected device from the network (device isolation) to prevent lateral movement while allowing security teams to investigate.
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.
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Last reviewed: Jun 11, 2026
This SC-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SC-900 exam.
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