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. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 uses Azure Logic Apps to automate a business process. The process needs to call an external REST API that requires an API key passed in the Authorization header. You need to store the API key securely and reference it in the Logic App. Which approach should you use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use an Azure Key Vault secret and a managed identity
Option B is correct because Azure Key Vault securely stores secrets like API keys, and using a managed identity allows the Logic App to authenticate to Key Vault without embedding credentials in code or configuration. This follows the principle of least privilege and eliminates the need to manage secrets in connection strings or parameter files.
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.
✗
Store the API key in the Logic App's definition as a constant
Why it's wrong here
Storing secrets in definition files exposes them in source control and is insecure.
✓
Use an Azure Key Vault secret and a managed identity
Why this is correct
Key Vault provides secure secret storage, and a managed identity allows the Logic App to authenticate without credentials.
Related concept
Read the scenario before looking for a memorised answer.
✗
Hardcode the API key in a parameter file
Why it's wrong here
Parameter files are still stored in code repositories and can be exposed.
✗
Use an Azure Storage account table to store the key
Why it's wrong here
Storage tables are not designed for secret storage and lack access control and audit capabilities of Key Vault.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose Option A or C because they think storing the key in the Logic App definition or a parameter file is 'secure enough' for development, but the exam emphasizes that any plaintext storage in code or configuration is a security violation, and the only correct approach is to use a dedicated secrets store like Key Vault with managed identity.
Detailed technical explanation
How to think about this question
Under the hood, the Logic App uses the managed identity to obtain an Azure AD token, which is then used to authenticate to Key Vault via the REST API (https://vault.azure.net). The Key Vault secret is retrieved using the `GetSecret` action, and the API key is passed in the Authorization header as a Bearer token or custom header value. A subtle behavior is that the managed identity must be granted the 'Key Vault Secrets User' role (or equivalent access policy) for the secret retrieval to succeed; otherwise, the Logic App will throw a 403 Forbidden error.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
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 an Azure Key Vault secret and a managed identity — Option B is correct because Azure Key Vault securely stores secrets like API keys, and using a managed identity allows the Logic App to authenticate to Key Vault without embedding credentials in code or configuration. This follows the principle of least privilege and eliminates the need to manage secrets in connection strings or parameter files.
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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Question Discussion
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