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mediummultiple choiceObjective-mapped

A company has an on-premises web application that they want to expose to external users over the internet without requiring a VPN. External users must authenticate with Modern Authentication (e.g., using Azure Multi-Factor Authentication) and access policies must be enforced via Conditional Access. The application does not support SAML or OAuth. Which Azure service should they use to publish this application securely?

Question 1mediummultiple choice
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A company has an on-premises web application that they want to expose to external users over the internet without requiring a VPN. External users must authenticate with Modern Authentication (e.g., using Azure Multi-Factor Authentication) and access policies must be enforced via Conditional Access. The application does not support SAML or OAuth. Which Azure service should they use to publish this application securely?

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Answer choices

Why each option matters

Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.

A

Distractor review

Azure AD B2C (Business-to-Consumer).

Azure AD B2C is for customer-facing identity management, not for publishing internal applications. It does not proxy traffic to on-premises apps.

B

Distractor review

Azure Application Gateway with Web Application Firewall (WAF).

Application Gateway is a Layer 7 load balancer that can handle public web traffic, but it does not provide Azure AD pre-authentication or the ability to connect to on-premises apps without a VPN. It requires the backend to be accessible.

C

Best answer

Azure AD Application Proxy.

Application Proxy is specifically designed for this scenario: it allows on-premises HTTP/HTTPS applications to be published through Azure AD, providing pre-authentication, MFA, and Conditional Access.

D

Distractor review

Azure Front Door.

Azure Front Door is a global load balancer and CDN for web applications. It does not integrate with Azure AD pre-authentication by default and requires the backend to be publicly accessible or connected via private link, not suitable for on-premises apps without a VPN.

Common exam trap

Common exam trap: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Technical deep dive

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

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.
  • Use explanations to understand the rule behind the answer.

TExam Day Tips

  • Underline the problem statement mentally.
  • 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.

Related practice questions

Related AZ-500 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

AZ-500 fundamentals practice questions

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AZ-500 scenario practice questions

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AZ-500 troubleshooting practice questions

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More questions from this exam

Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.

Question 1

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Question 2

A public web application should be protected from OWASP-style attacks and network-layer DDoS attacks. Which two Azure services are most relevant?

Question 3

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Question 4

A SOC analyst needs a Sentinel query that detects multiple failed sign-ins followed by a successful sign-in for the same user. Which table is the best primary source?

Question 5

A Sentinel watchlist contains high-value administrator accounts. Which KQL pattern best uses it in a detection rule?

Question 6

A SOC wants a Sentinel rule to include account, host, and IP entities so analysts can pivot during investigation. What should be configured in the analytics rule?

FAQ

Questions learners often ask

What does this AZ-500 question test?

Read the scenario before looking for a memorised answer.

What is the correct answer to this question?

The correct answer is: Azure AD Application Proxy. — Azure AD Application Proxy enables secure remote access to on-premises web applications. It works by installing a connector on the on-premises network, then publishing the application through Azure AD. Users authenticate via Azure AD, which supports MFA and Conditional Access, and then are proxied to the internal application. The application does not need to support modern authentication; the proxy handles the authentication translation.

What should I do if I get this AZ-500 question wrong?

Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.

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