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You are building an Azure Logic App that must connect to a third-party CRM system using a custom API. The API requires an API key in the header of every request. You need to securely store the API key and reference it in the Logic App. Which approach should you use?

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You are building an Azure Logic App that must connect to a third-party CRM system using a custom API. The API requires an API key in the header of every request. You need to securely store the API key and reference it in the Logic App. Which approach should you use?

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

Store the API key in the Azure Logic App's definition file.

Storing secrets in the definition file exposes them in plain text and version control, which is insecure.

B

Distractor review

Use a parameter and a connection reference in the Logic App.

Parameters may be set via ARM template parameters but still require the secret value to be stored somewhere; connection references also store credentials within the resource.

C

Best answer

Store the API key in Azure Key Vault and reference it with a dynamic expression.

Key Vault centralizes secret management; Logic Apps can use the @keyVault() expression to retrieve secrets securely, avoiding exposure.

D

Distractor review

Hardcode the API key in the HTTP action.

Hardcoding secrets in actions is a major security risk and should never be done.

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-204 practice-question pages

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

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

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Question 6

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FAQ

Questions learners often ask

What does this AZ-204 question test?

Read the scenario before looking for a memorised answer.

What is the correct answer to this question?

The correct answer is: Store the API key in Azure Key Vault and reference it with a dynamic expression. — Azure Key Vault provides a secure store for secrets and can be referenced in Logic Apps via dynamic expressions, keeping the API key out of code and configuration files.

What should I do if I get this AZ-204 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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