- A
Microsoft Entra Application Proxy
Correct. Application Proxy provides secure remote access to on-premises web apps using Entra ID authentication, supporting MFA and conditional access policies without requiring a VPN.
- B
Microsoft Entra Domain Services
Why wrong: Domain Services provides managed domain services (e.g., LDAP, Kerberos) for cloud workloads, not secure remote access to on-premises apps.
- C
Microsoft Entra Privileged Identity Management
Why wrong: PIM manages just-in-time and time-bound access to privileged roles, not remote access to applications.
- D
Microsoft Entra Identity Protection
Why wrong: Identity Protection detects and remediates identity risks such as leaked credentials or suspicious sign-ins, but does not provide a reverse proxy to on-premises apps.
Microsoft Entra Application Proxy for Remote Access
This SC-900 practice question tests your understanding of describe the capabilities of microsoft entra. 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.
A company has several custom-developed web applications hosted on-premises. The company wants to provide employees with secure remote access to these applications without deploying a traditional VPN. Employees should be able to sign in using their existing Microsoft Entra ID credentials, and the solution should pass through multi-factor authentication policies. Which Microsoft Entra ID feature should they implement?
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 Entra Application Proxy
Microsoft Entra Application Proxy provides secure remote access to on-premises web applications by acting as a reverse proxy. It allows employees to sign in with their existing Microsoft Entra ID credentials and enforces conditional access policies, including multi-factor authentication, without requiring a traditional VPN.
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 Application Proxy
- ✗
Microsoft Entra Domain Services
Why it's wrong here
Domain Services provides managed domain services (e.g., LDAP, Kerberos) for cloud workloads, not secure remote access to on-premises apps.
When this WOULD be correct
A company needs to migrate legacy on-premises applications that require LDAP or NTLM authentication to the cloud without rewriting them. They want to use Microsoft Entra ID for authentication but the apps don't support modern protocols. In this case, Entra Domain Services would provide the necessary domain services.
- ✗
Microsoft Entra Privileged Identity Management
Why it's wrong here
PIM manages just-in-time and time-bound access to privileged roles, not remote access to applications.
When this WOULD be correct
A company needs to implement just-in-time privileged access for administrators managing critical Azure resources, requiring time-bound role assignments and approval workflows. PIM would be the correct answer for managing and auditing privileged roles.
- ✗
Microsoft Entra Identity Protection
Why it's wrong here
Identity Protection detects and remediates identity risks such as leaked credentials or suspicious sign-ins, but does not provide a reverse proxy to on-premises apps.
When this WOULD be correct
An exam question asks: 'A company wants to automatically detect and respond to suspicious sign-in behaviors, such as impossible travel or leaked credentials, and enforce conditional access policies based on user risk. Which Microsoft Entra feature should they implement?'
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 Entra Application ProxyCorrect answer▾
Why this is correct
Correct. Application Proxy provides secure remote access to on-premises web apps using Entra ID authentication, supporting MFA and conditional access policies without requiring a VPN.
✗Microsoft Entra Domain ServicesWrong answer — click to see why▾
Why this is wrong here
Microsoft Entra Domain Services provides managed domain services like domain join and LDAP, not secure remote access to on-premises web applications with Microsoft Entra ID authentication and MFA.
★ When this WOULD be the correct answer
A company needs to migrate legacy on-premises applications that require LDAP or NTLM authentication to the cloud without rewriting them. They want to use Microsoft Entra ID for authentication but the apps don't support modern protocols. In this case, Entra Domain Services would provide the necessary domain services.
Why candidates choose this
Candidates may confuse 'Domain Services' with providing access to on-premises resources, or think that domain services are needed for authentication and MFA pass-through.
✗Microsoft Entra Privileged Identity ManagementWrong answer — click to see why▾
Why this is wrong here
Privileged Identity Management (PIM) manages, controls, and monitors access to privileged roles in Microsoft Entra ID, but it does not provide secure remote access to on-premises web applications. The question requires a solution for remote application access, not identity governance.
★ When this WOULD be the correct answer
A company needs to implement just-in-time privileged access for administrators managing critical Azure resources, requiring time-bound role assignments and approval workflows. PIM would be the correct answer for managing and auditing privileged roles.
Why candidates choose this
Candidates may confuse PIM with a security feature that controls access, but they overlook that PIM focuses on role-based access control for privileged identities, not on proxying application traffic.
✗Microsoft Entra Identity ProtectionWrong answer — click to see why▾
Why this is wrong here
Microsoft Entra Identity Protection is a risk-based detection and remediation tool, not a remote access solution. It does not provide secure access to on-premises web applications or pass through authentication to them.
★ When this WOULD be the correct answer
An exam question asks: 'A company wants to automatically detect and respond to suspicious sign-in behaviors, such as impossible travel or leaked credentials, and enforce conditional access policies based on user risk. Which Microsoft Entra feature should they implement?'
Why candidates choose this
Candidates may confuse Identity Protection's security monitoring capabilities with the secure access requirements of the question, thinking that identity protection includes remote access features.
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 Entra Application Proxy with a traditional VPN or assume that Microsoft Entra Domain Services is needed for authentication, but the key requirement is secure remote access without VPN, which only Application Proxy fulfills by acting as a reverse proxy with Entra ID integration.
Detailed technical explanation
How to think about this question
Microsoft Entra Application Proxy uses a connector installed on-premises that establishes outbound connections to the Entra ID service, eliminating the need to open inbound firewall ports. It supports Kerberos constrained delegation for integrated Windows authentication and can be configured with pre-authentication to enforce MFA and conditional access before traffic reaches the on-premises app.
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 Entra — This question tests Describe the capabilities of Microsoft Entra — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Microsoft Entra Application Proxy — Microsoft Entra Application Proxy provides secure remote access to on-premises web applications by acting as a reverse proxy. It allows employees to sign in with their existing Microsoft Entra ID credentials and enforces conditional access policies, including multi-factor authentication, without requiring a traditional VPN.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more ways this is tested on SC-900
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. A company has several on-premises web-based applications that need to be securely accessed by remote employees without requiring a VPN. The IT team wants to provide single sign-on (SSO) using Microsoft Entra ID. Which Microsoft Entra ID feature should they implement?
medium- ✓ A.Microsoft Entra Application Proxy
- B.Microsoft Entra Self-Service Password Reset (SSPR)
- C.Microsoft Entra Privileged Identity Management (PIM)
- D.Microsoft Entra Identity Protection
Why A: Microsoft Entra Application Proxy enables secure remote access to on-premises web applications without a VPN by acting as a reverse proxy. It integrates with Microsoft Entra ID to provide single sign-on (SSO) for users, leveraging pre-authentication and conditional access policies. This directly meets the requirement for VPN-less, SSO-enabled access.
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Last reviewed: Jun 11, 2026
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