Quick Answer
The answer is Cloud Security Posture Management (CSPM), Just-in-Time VM Access, and Vulnerability Assessment. These three are core capabilities of Microsoft Defender for Cloud because they directly address different layers of cloud security: CSPM continuously evaluates your environment against compliance frameworks and security benchmarks, while Just-in-Time VM Access reduces the attack surface by locking down inbound traffic to Azure VMs through Network Security Group rules that only open management ports like RDP or SSH when an authorized user requests access for a specific time window and from a specific IP address. Vulnerability Assessment, meanwhile, scans your resources for known weaknesses and integrates with the broader Defender for Cloud dashboard. On the SC-900 exam, this question tests your understanding of Defender for Cloud’s operational features rather than its pricing or deployment models—a common trap is confusing Azure Policy with CSPM, but remember that CSPM is a Defender for Cloud capability, not a separate service. A useful memory tip is to think of the acronym “CJV” (Cloud posture, Just-in-time, Vulnerability) to recall the three distinct pillars of protection.
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.
Which THREE are capabilities of Microsoft Defender for Cloud?
Just-in-time (JIT) VM access
Reduces attack surface with managed access.
Vulnerability assessment for virtual machines
Scans VMs for vulnerabilities.
Cloud Security Posture Management (CSPM)
Assesses and improves security posture.
DDoS protection
Why wrong: Separate Azure service.
SIEM and security orchestration
Why wrong: Capability of Microsoft Sentinel.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Just-in-time (JIT) VM access
Just-in-time (JIT) VM access is a capability of Microsoft Defender for Cloud that reduces the attack surface by locking down inbound traffic to Azure VMs. It uses Network Security Group (NSG) rules to allow access only when requested by an authorized user, for a specified time window, and from a specific IP address. This prevents persistent open management ports like RDP (TCP 3389) or SSH (TCP 22) from being exposed to the internet.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Just-in-time (JIT) VM access
Why this is correct
Reduces attack surface with managed access.
Related concept
Read the scenario before looking for a memorised answer.
Vulnerability assessment for virtual machines
Why this is correct
Scans VMs for vulnerabilities.
Related concept
Read the scenario before looking for a memorised answer.
Cloud Security Posture Management (CSPM)
Why this is correct
Assesses and improves security posture.
Related concept
Read the scenario before looking for a memorised answer.
DDoS protection
Why it's wrong here
Separate Azure service.
SIEM and security orchestration
Why it's wrong here
Capability of Microsoft Sentinel.
Common exam traps
The trap here is that candidates confuse the 'recommendations' or 'alerts' shown in Defender for Cloud (which may mention DDoS or SIEM integration) with Defender for Cloud's own native capabilities, leading them to incorrectly select D or E as direct features.
Detailed technical explanation
Under the hood, JIT VM access works by dynamically creating and removing NSG rules via the Azure Resource Manager API. When a user requests access, Defender for Cloud validates their Azure RBAC permissions, then adds an inbound rule with a source IP address and a short expiry (e.g., 3 hours). After the time window expires, the rule is automatically deleted, reverting the NSG to its locked-down state. This is distinct from Azure Bastion, which provides persistent, managed RDP/SSH access without exposing public IPs.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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..
The correct answer is: Just-in-time (JIT) VM access — Just-in-time (JIT) VM access is a capability of Microsoft Defender for Cloud that reduces the attack surface by locking down inbound traffic to Azure VMs. It uses Network Security Group (NSG) rules to allow access only when requested by an authorized user, for a specified time window, and from a specific IP address. This prevents persistent open management ports like RDP (TCP 3389) or SSH (TCP 22) from being exposed to the internet.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Same concept, more angles
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. Which TWO of the following are capabilities of Microsoft Defender for Cloud?
easyWhy A: Microsoft Defender for Cloud provides cloud security posture management (CSPM) and workload protection. Option B is correct because it offers CSPM via secure score. Option D is correct because it provides just-in-time VM access. Option A is wrong because that is Microsoft Defender for Identity. Option C is wrong because that is Microsoft Sentinel. Option E is wrong because that is Microsoft Intune.
Last reviewed: Jun 24, 2026
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