- A
Deploy Microsoft Entra Domain Services and join the VMs to the managed domain. Configure the app to use Windows Integrated Authentication.
Why wrong: This does not provide secure access without exposing the app to the internet.
- B
Use Microsoft Entra Application Proxy with Kerberos Constrained Delegation (KCD). Publish the app through Application Proxy and configure pre-authentication with Entra ID.
Application Proxy provides secure remote access and supports KCD for WIA apps.
- C
Set up a site-to-site VPN and join the Azure VMs to the on-premises domain. Configure the app to use Windows Integrated Authentication.
Why wrong: This requires VPN and does not provide Entra ID-based SSO.
- D
Install Azure AD Connect and sync users to Entra ID. Configure the app to use OAuth 2.0.
Why wrong: This does not address secure access or Kerberos delegation.
SC-900 Describe the capabilities of Microsoft Entra Practice Question
This SC-900 practice question tests your understanding of describe the capabilities of microsoft entra. 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.
Your organization, Fabrikam Inc., is migrating from on-premises Active Directory to Microsoft Entra ID. You have a custom line-of-business (LOB) application that uses Windows Integrated Authentication (WIA) and requires Kerberos delegation. The application will be hosted on Azure VMs. You need to enable users to sign in to the LOB application using their Microsoft Entra ID credentials without exposing the application to the internet. Which approach should you use?
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
Use Microsoft Entra Application Proxy with Kerberos Constrained Delegation (KCD). Publish the app through Application Proxy and configure pre-authentication with Entra ID.
Option B is correct because Microsoft Entra Application Proxy with Kerberos Constrained Delegation (KCD) allows you to publish an on-premises or Azure VM-hosted application that uses Windows Integrated Authentication (WIA) without exposing it to the internet. The Application Proxy service handles pre-authentication with Microsoft Entra ID, then uses KCD to obtain a Kerberos ticket on behalf of the user, enabling seamless sign-in with Entra ID credentials while keeping the application internal.
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.
- ✗
Deploy Microsoft Entra Domain Services and join the VMs to the managed domain. Configure the app to use Windows Integrated Authentication.
Why it's wrong here
This does not provide secure access without exposing the app to the internet.
- ✓
Use Microsoft Entra Application Proxy with Kerberos Constrained Delegation (KCD). Publish the app through Application Proxy and configure pre-authentication with Entra ID.
Why this is correct
Application Proxy provides secure remote access and supports KCD for WIA apps.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Set up a site-to-site VPN and join the Azure VMs to the on-premises domain. Configure the app to use Windows Integrated Authentication.
Why it's wrong here
This requires VPN and does not provide Entra ID-based SSO.
- ✗
Install Azure AD Connect and sync users to Entra ID. Configure the app to use OAuth 2.0.
Why it's wrong here
This does not address secure access or Kerberos delegation.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Microsoft Entra Domain Services with a full replacement for on-premises Active Directory, not realizing that it does not provide the Kerberos delegation path needed for Application Proxy to work with WIA, and they overlook the requirement to keep the application off the internet, which eliminates VPN-based options.
Detailed technical explanation
How to think about this question
Kerberos Constrained Delegation (KCD) in the context of Application Proxy works by having the Application Proxy connector impersonate the user after pre-authentication, requesting a Kerberos ticket from the on-premises domain controller for the backend application's service principal name (SPN). The connector then forwards the ticket to the application, enabling WIA without exposing the application to the internet. A subtle behavior is that the connector must be domain-joined and have the proper delegation permissions configured in Active Directory, and the application's service account must be trusted for delegation to the specific backend service.
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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Describe the capabilities of Microsoft Entra — study guide chapter
Learn the concepts, then practise the questions
- →
Describe the capabilities of Microsoft Entra practice questions
Targeted practice on this topic area only
- →
All SC-900 questions
1,411 questions across all exam domains
- →
Microsoft Security, Compliance, and Identity Fundamentals SC-900 study guide
Full concept coverage aligned to exam objectives
- →
SC-900 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related SC-900 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Describe the capabilities of Microsoft Entra practice questions
Practise SC-900 questions linked to Describe the capabilities of Microsoft Entra.
Describe the capabilities of Microsoft security solutions practice questions
Practise SC-900 questions linked to Describe the capabilities of Microsoft security solutions.
Describe the capabilities of Microsoft compliance solutions practice questions
Practise SC-900 questions linked to Describe the capabilities of Microsoft compliance solutions.
Describe the concepts of security, compliance, and identity practice questions
Practise SC-900 questions linked to Describe the concepts of security, compliance, and identity.
SC-900 fundamentals practice questions
Practise SC-900 questions linked to SC-900 fundamentals.
SC-900 scenario practice questions
Practise SC-900 questions linked to SC-900 scenario.
SC-900 troubleshooting practice questions
Practise SC-900 questions linked to SC-900 troubleshooting.
Practice this exam
Start a free SC-900 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
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: Use Microsoft Entra Application Proxy with Kerberos Constrained Delegation (KCD). Publish the app through Application Proxy and configure pre-authentication with Entra ID. — Option B is correct because Microsoft Entra Application Proxy with Kerberos Constrained Delegation (KCD) allows you to publish an on-premises or Azure VM-hosted application that uses Windows Integrated Authentication (WIA) without exposing it to the internet. The Application Proxy service handles pre-authentication with Microsoft Entra ID, then uses KCD to obtain a Kerberos ticket on behalf of the user, enabling seamless sign-in with Entra ID credentials while keeping the application internal.
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 →
Last reviewed: Jun 24, 2026
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.