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. 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 company runs critical applications on Azure virtual machines and on-premises SQL servers. The security team wants to reduce VM attack surface by allowing just-in-time (JIT) access to RDP and SSH ports only when needed. Additionally, they need to monitor changes to important registry keys and system files on the SQL servers. Which Microsoft security solution should they use?
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
Microsoft Defender for Cloud provides just-in-time (JIT) VM access to reduce the attack surface by locking down inbound traffic to RDP (port 3389) and SSH (port 22) until a user requests access. It also includes adaptive application controls and file integrity monitoring (FIM) to track changes to registry keys and system files on both Azure VMs and on-premises SQL servers. This makes it the single solution that addresses both requirements.
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 this is correct
Defender for Cloud offers JIT VM access and file integrity monitoring, fulfilling both requirements.
Related concept
Read the scenario before looking for a memorised answer.
✗
Microsoft Defender for Endpoint
Why it's wrong here
Defender for Endpoint provides endpoint detection and response but does not include JIT VM access or FIM for Azure VMs.
✗
Microsoft Defender for Identity
Why it's wrong here
Defender for Identity protects on-premises Active Directory using behavioral analytics, not JIT or FIM.
✗
Microsoft Defender for Cloud Apps
Why it's wrong here
Defender for Cloud Apps is a cloud access security broker (CASB) for controlling cloud app usage, not for VM or server protection.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse Microsoft Defender for Endpoint's broader device protection capabilities with the specific JIT and FIM features that are exclusive to Microsoft Defender for Cloud.
Detailed technical explanation
How to think about this question
JIT access in Defender for Cloud works by creating network security group (NSG) rules that deny all inbound traffic to RDP/SSH ports by default, then temporarily allowing access from a specific IP address for a defined time window after user approval via Azure Policy. File integrity monitoring (FIM) uses the Change Tracking agent to collect baseline snapshots of registry keys (e.g., HKLM\Software\Microsoft\Windows\CurrentVersion\Run) and system files, then alerts on any deviations. This combination is critical for compliance frameworks like PCI DSS that require both access control and change monitoring.
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 SC-900 question in full detail.
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 — Microsoft Defender for Cloud provides just-in-time (JIT) VM access to reduce the attack surface by locking down inbound traffic to RDP (port 3389) and SSH (port 22) until a user requests access. It also includes adaptive application controls and file integrity monitoring (FIM) to track changes to registry keys and system files on both Azure VMs and on-premises SQL servers. This makes it the single solution that addresses both requirements.
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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Question Discussion
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