SC-900 Practice Question: Describe the capabilities of Microsoft security solutions
You work at a mid-sized company that uses Microsoft Defender for Business (a subscription included with Microsoft 365 Business Premium). The company has 300 devices enrolled in Microsoft Intune. Recently, a malware outbreak occurred on several devices. You need to implement a solution that automatically remediates devices that are found to be infected with malware. The solution should isolate the device from the network and run a full scan. Which action should you take?
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
✓
Enable automatic investigation and remediation in Microsoft Defender for Business.
Correct: C. Microsoft Defender for Business includes automated investigation and remediation capabilities that can automatically isolate infected devices and run full scans. Option A: Conditional Access policies control access based on conditions but do not perform remediation actions like isolation or scanning. Option B: Intune compliance policies can mark devices as non-compliant but do not automatically remediate malware. Option D: Configuring Microsoft Defender Antivirus to run a weekly scan is a scheduled task, not an automatic response to detected malware.
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 Conditional Access policy to block access for devices with malware.
Why it's wrong here
Conditional Access policies control access to resources based on conditions but do not perform automatic remediation actions like isolation or scanning.
- ✗
Create an Intune compliance policy to mark devices as non-compliant if malware is detected.
Why it's wrong here
Intune compliance policies can mark devices as non-compliant but do not automatically remediate malware or isolate the device.
- ✓
Enable automatic investigation and remediation in Microsoft Defender for Business.
Why this is correct
Microsoft Defender for Business includes automated investigation and remediation capabilities that can automatically isolate infected devices and run full scans when malware is detected.
- ✗
Configure Microsoft Defender Antivirus to run a weekly scan.
Why it's wrong here
Configuring Microsoft Defender Antivirus to run a weekly scan is a scheduled task, not an automatic response to a malware outbreak.
Go deeper
Related to this question
Learn chapter
Compliance Concepts
Key term
Malware
Malware is any software intentionally designed to cause damage, disrupt operations, steal data, or gain unauthorized access to computer systems.
Key term
Compliance
Compliance is the process of ensuring that an organization follows laws, regulations, standards, and internal policies that apply to its operations and data handling.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.