- A
Microsoft Entra Privileged Identity Management (PIM)
Why wrong: PIM provides just-in-time and approval workflows for Azure AD roles and Azure resource roles, but not for administrative ports on virtual machines.
- B
Microsoft Defender for Identity
Why wrong: Defender for Identity monitors on-premises Active Directory for identity attacks, but does not offer just-in-time access to server ports.
- C
Microsoft Defender for Cloud (with just-in-time VM access)
Defender for Cloud's JIT feature allows you to manage and approve temporary access to management ports (RDP, SSH) on Azure VMs and, via Azure Arc, on on-premises servers, thereby reducing the attack surface.
- D
Microsoft Defender for Cloud Apps
Why wrong: Defender for Cloud Apps is a CASB that provides visibility and control over cloud applications, not just-in-time access to VM ports.
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. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 Windows Server virtual machines in Azure and on-premises. The security team wants to reduce the exposure of administrative ports (e.g., RDP, SSH) by requiring administrators to request just-in-time (JIT) access. The request should require approval from a central team, and the port should be opened only for a limited time. Which Microsoft security solution provides this JIT capability for both Azure and on-premises servers (when connected via Azure Arc)?
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 (with just-in-time VM access)
Microsoft Defender for Cloud's just-in-time (JIT) VM access capability reduces exposure to administrative ports (RDP, SSH) by locking down inbound traffic to Azure VMs and Azure Arc-enabled on-premises servers. It requires administrators to request access, which can be configured to require approval from a central team, and automatically opens the specified ports for a limited time before closing them again. This directly matches the scenario's need for JIT access with approval and time-limited port opening across hybrid environments.
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 Entra Privileged Identity Management (PIM)
Why it's wrong here
PIM provides just-in-time and approval workflows for Azure AD roles and Azure resource roles, but not for administrative ports on virtual machines.
When this WOULD be correct
A question asks: 'Which Microsoft solution provides just-in-time and time-bound privileged role assignments for Azure AD roles, such as Global Administrator, with approval workflows?' In that context, Microsoft Entra PIM is the correct answer.
- ✗
Microsoft Defender for Identity
Why it's wrong here
Defender for Identity monitors on-premises Active Directory for identity attacks, but does not offer just-in-time access to server ports.
When this WOULD be correct
A question asking which Microsoft solution detects and investigates advanced attacks against on-premises Active Directory environments, such as pass-the-hash or golden ticket attacks, would have Microsoft Defender for Identity as the correct answer.
- ✓
Microsoft Defender for Cloud (with just-in-time VM access)
Why this is correct
Defender for Cloud's JIT feature allows you to manage and approve temporary access to management ports (RDP, SSH) on Azure VMs and, via Azure Arc, on on-premises servers, thereby reducing the attack surface.
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 CASB that provides visibility and control over cloud applications, not just-in-time access to VM ports.
When this WOULD be correct
A question asks: 'Which Microsoft solution provides visibility and control over shadow IT, enforces data loss prevention policies, and detects anomalous behavior in cloud applications like Microsoft 365 and Salesforce?' In that scenario, Microsoft Defender for Cloud Apps would be the correct answer.
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 (with just-in-time VM access)Correct answer▾
Why this is correct
Defender for Cloud's JIT feature allows you to manage and approve temporary access to management ports (RDP, SSH) on Azure VMs and, via Azure Arc, on on-premises servers, thereby reducing the attack surface.
✗Microsoft Entra Privileged Identity Management (PIM)Wrong answer — click to see why▾
Why this is wrong here
Microsoft Entra PIM manages just-in-time privileged access to Azure AD roles and Azure resources, but it does not provide JIT access to administrative ports (RDP/SSH) on virtual machines, whether in Azure or on-premises via Azure Arc.
★ When this WOULD be the correct answer
A question asks: 'Which Microsoft solution provides just-in-time and time-bound privileged role assignments for Azure AD roles, such as Global Administrator, with approval workflows?' In that context, Microsoft Entra PIM is the correct answer.
Why candidates choose this
Candidates associate 'just-in-time' and 'approval' with PIM, but they overlook that PIM handles role-based access, not network-level port access for VMs.
✗Microsoft Defender for IdentityWrong answer — click to see why▾
Why this is wrong here
Microsoft Defender for Identity is an on-premises security solution that detects identity threats using Active Directory signals, but it does not provide just-in-time (JIT) access control for administrative ports on VMs.
★ When this WOULD be the correct answer
A question asking which Microsoft solution detects and investigates advanced attacks against on-premises Active Directory environments, such as pass-the-hash or golden ticket attacks, would have Microsoft Defender for Identity as the correct answer.
Why candidates choose this
Candidates may confuse 'Identity' in the name with identity-based access control, mistakenly thinking it includes JIT access management for administrative ports.
✗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, not on managing just-in-time access to administrative ports on VMs. It does not provide JIT VM access capabilities.
★ When this WOULD be the correct answer
A question asks: 'Which Microsoft solution provides visibility and control over shadow IT, enforces data loss prevention policies, and detects anomalous behavior in cloud applications like Microsoft 365 and Salesforce?' In that scenario, Microsoft Defender for Cloud Apps would be the correct answer.
Why candidates choose this
Candidates may confuse the 'just-in-time' concept with other security solutions, or assume that Defender for Cloud Apps includes JIT capabilities because it is part of the Microsoft Defender suite and deals with access control.
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 confuse Privileged Identity Management (PIM) with just-in-time VM access because both involve 'just-in-time' and 'approval,' but PIM controls role activation in Azure AD/Entra ID, not network-level port access to virtual machines.
Detailed technical explanation
How to think about this question
Under the hood, Defender for Cloud's JIT works by creating network security group (NSG) rules or Azure Firewall policies that deny all inbound traffic to specified ports (e.g., 3389, 22) by default. When a user requests access, the solution temporarily creates an allow rule with a source IP (the user's current public IP) and a time-to-live (TTL) typically ranging from 1 to 24 hours, after which the rule is automatically removed. For on-premises servers connected via Azure Arc, the same JIT policy is enforced by the Azure Arc agent, which communicates with Defender for Cloud to apply local Windows Firewall rules, ensuring consistent protection across hybrid workloads.
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 (with just-in-time VM access) — Microsoft Defender for Cloud's just-in-time (JIT) VM access capability reduces exposure to administrative ports (RDP, SSH) by locking down inbound traffic to Azure VMs and Azure Arc-enabled on-premises servers. It requires administrators to request access, which can be configured to require approval from a central team, and automatically opens the specified ports for a limited time before closing them again. This directly matches the scenario's need for JIT access with approval and time-limited port opening across hybrid environments.
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
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