The answer is to enable the 'HTTPS Only' setting in the App Service's TLS/SSL settings blade. This is correct because the 'HTTPS Only' setting enforces automatic redirection from HTTP to HTTPS at the Azure platform level, before any application code executes, ensuring all traffic is encrypted without requiring changes to your web application. On the Microsoft Azure Developer Associate AZ-204 exam, this scenario tests your understanding of App Service configuration versus code-level solutions; a common trap is attempting to implement redirection via web.config or application logic, which is unnecessary and less efficient. Remember that since you have already uploaded an SSL certificate, the missing piece is simply flipping this toggle to block unencrypted requests. A helpful memory tip: think of the 'HTTPS Only' setting as a bouncer at the door—it checks every request and immediately redirects HTTP traffic before it ever reaches your app.
AZ-204 Develop Azure compute solutions Practice Question
This AZ-204 practice question tests your understanding of develop azure compute solutions. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 company runs a web application on Azure App Service that uses a custom domain. The application must be accessible only via HTTPS. You have already uploaded an SSL certificate for the custom domain. However, users can still access the site via HTTP. You need to enforce HTTPS redirection. What should you do?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable the 'HTTPS Only' setting in the App Service's TLS/SSL settings blade.
The 'HTTPS Only' setting in the App Service's TLS/SSL settings blade enforces that all incoming requests are redirected from HTTP to HTTPS at the platform level, before any application code runs. Since you have already uploaded an SSL certificate, enabling this setting ensures that users cannot access the site via HTTP, meeting the requirement without modifying application code.
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.
✗
Set the 'Minimum TLS Version' to 1.2.
Why it's wrong here
This only sets the minimum TLS version, not redirection.
✗
Add a rewrite rule in the web.config file to redirect HTTP to HTTPS.
Why it's wrong here
Web.config rewrite works but is not as reliable as platform setting.
✗
Configure the App Service to require client certificates.
Why it's wrong here
Client certificates are for mutual authentication.
✓
Enable the 'HTTPS Only' setting in the App Service's TLS/SSL settings blade.
Why this is correct
This setting enforces HTTPS redirection at the platform level.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think a web.config rewrite rule (Option B) is sufficient, but Azure explicitly recommends the platform-level 'HTTPS Only' setting because it is simpler, more reliable, and works regardless of the application stack (e.g., .NET, Node.js, Python).
Detailed technical explanation
How to think about this question
The 'HTTPS Only' setting works by configuring the Azure front-end load balancer (ARR affinity) to return a 301 redirect for any HTTP request to the corresponding HTTPS URL, effectively offloading the redirection from the application. This setting is part of the App Service's TLS/SSL configuration and is applied before the request reaches the application's web server (IIS or Kestrel), ensuring consistent behavior even if the application's rewrite rules fail or are misconfigured. In a real-world scenario, this is critical for compliance with security policies like PCI DSS, which require automatic redirection from HTTP to HTTPS.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
Develop Azure compute solutions — This question tests Develop Azure compute solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable the 'HTTPS Only' setting in the App Service's TLS/SSL settings blade. — The 'HTTPS Only' setting in the App Service's TLS/SSL settings blade enforces that all incoming requests are redirected from HTTP to HTTPS at the platform level, before any application code runs. Since you have already uploaded an SSL certificate, enabling this setting ensures that users cannot access the site via HTTP, meeting the requirement without modifying application code.
What should I do if I get this AZ-204 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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