- A
Use the 'Get secret' action from the Azure Key Vault connector, configured to authenticate with a managed identity. Then pass the output to the 'HTTP' action's header as 'X-API-Key'.
The Azure Key Vault connector allows secure retrieval of secrets using managed identity. The HTTP action can then reference the secret value in the header, keeping it out of the workflow definition.
- B
Create an API connection for the external API, providing the API key in the connection parameters. Then use that connection in the Logic App.
Why wrong: API connections are pre-built connectors that typically use OAuth or basic auth. They may not support custom header injection and are not recommended for custom APIs that don't have a connector.
- C
Store the API key directly in the Logic App definition's 'constants' section and reference it in the HTTP action.
Why wrong: Storing secrets directly in the Logic App definition is insecure and violates best practices. Secrets should be stored in Azure Key Vault and retrieved at runtime.
- D
Use the 'HTTP' action with 'Managed Identity' authentication type, and configure the external API to accept Microsoft Entra ID tokens.
Why wrong: The external API expects an API key, not an Microsoft Entra ID token. Managed identity can only be used if the target service supports AAD authentication, which this third-party API does not.
AZ-204 Practice Question: Connect to and consume Azure services and third-party services
This AZ-204 practice question tests your understanding of connect to and consume azure services and third-party services. 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.
You are building an Azure Logic App that needs to call a third-party REST API. The API requires an API key to be passed in the 'X-API-Key' header. You have stored the API key as a secret in Azure Key Vault. The Logic App uses a managed identity that has read access to the Key Vault secret. You want to retrieve the API key securely at runtime and include it in the HTTP request. 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 the 'Get secret' action from the Azure Key Vault connector, configured to authenticate with a managed identity. Then pass the output to the 'HTTP' action's header as 'X-API-Key'.
Option A is correct because it uses the Azure Key Vault connector's 'Get secret' action with managed identity authentication to securely retrieve the API key at runtime. The output is then passed directly into the HTTP action's 'X-API-Key' header, ensuring the secret is never exposed in the Logic App definition or logs. This approach follows the principle of least privilege and avoids hardcoding secrets.
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.
- ✓
Use the 'Get secret' action from the Azure Key Vault connector, configured to authenticate with a managed identity. Then pass the output to the 'HTTP' action's header as 'X-API-Key'.
Why this is correct
The Azure Key Vault connector allows secure retrieval of secrets using managed identity. The HTTP action can then reference the secret value in the header, keeping it out of the workflow definition.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create an API connection for the external API, providing the API key in the connection parameters. Then use that connection in the Logic App.
Why it's wrong here
API connections are pre-built connectors that typically use OAuth or basic auth. They may not support custom header injection and are not recommended for custom APIs that don't have a connector.
- ✗
Store the API key directly in the Logic App definition's 'constants' section and reference it in the HTTP action.
Why it's wrong here
Storing secrets directly in the Logic App definition is insecure and violates best practices. Secrets should be stored in Azure Key Vault and retrieved at runtime.
- ✗
Use the 'HTTP' action with 'Managed Identity' authentication type, and configure the external API to accept Microsoft Entra ID tokens.
Why it's wrong here
The external API expects an API key, not an Microsoft Entra ID token. Managed identity can only be used if the target service supports AAD authentication, which this third-party API does not.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse managed identity authentication on the HTTP action (which sends an Entra ID token) with using a managed identity to authenticate to Key Vault, leading them to select option D, which is technically incorrect for an API key scenario.
Detailed technical explanation
How to think about this question
Under the hood, the Azure Key Vault connector uses the Azure REST API (https://vault.azure.net/secrets/{secret-name}) to fetch the secret value, and the managed identity token is obtained via the Azure Instance Metadata Service (IMDS) endpoint (169.254.169.254). The secret is returned as a secure string and can be used in subsequent actions without being logged in plaintext if the Logic App's diagnostics settings are configured correctly. A real-world scenario is a microservice that rotates API keys daily; using Key Vault ensures the Logic App always gets the latest version without redeployment.
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.
- →
Connect to and consume Azure services and third-party services — study guide chapter
Learn the concepts, then practise the questions
- →
Connect to and consume Azure services and third-party services practice questions
Targeted practice on this topic area only
- →
All AZ-204 questions
997 questions across all exam domains
- →
Microsoft Azure Developer Associate AZ-204 study guide
Full concept coverage aligned to exam objectives
- →
AZ-204 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related AZ-204 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Develop Azure compute solutions practice questions
Practise AZ-204 questions linked to Develop Azure compute solutions.
Develop for Azure storage practice questions
Practise AZ-204 questions linked to Develop for Azure storage.
Implement Azure security practice questions
Practise AZ-204 questions linked to Implement Azure security.
Connect to and consume Azure services and third-party services practice questions
Practise AZ-204 questions linked to Connect to and consume Azure services and third-party services.
Monitor, troubleshoot, and optimize Azure solutions practice questions
Practise AZ-204 questions linked to Monitor, troubleshoot, and optimize Azure solutions.
AZ-204 fundamentals practice questions
Practise AZ-204 questions linked to AZ-204 fundamentals.
AZ-204 scenario practice questions
Practise AZ-204 questions linked to AZ-204 scenario.
AZ-204 troubleshooting practice questions
Practise AZ-204 questions linked to AZ-204 troubleshooting.
Practice this exam
Start a free AZ-204 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 AZ-204 question test?
Connect to and consume Azure services and third-party services — This question tests Connect to and consume Azure services and third-party services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use the 'Get secret' action from the Azure Key Vault connector, configured to authenticate with a managed identity. Then pass the output to the 'HTTP' action's header as 'X-API-Key'. — Option A is correct because it uses the Azure Key Vault connector's 'Get secret' action with managed identity authentication to securely retrieve the API key at runtime. The output is then passed directly into the HTTP action's 'X-API-Key' header, ensuring the secret is never exposed in the Logic App definition or logs. This approach follows the principle of least privilege and avoids hardcoding secrets.
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.
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 11, 2026
This AZ-204 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 AZ-204 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.