AZ-204 Develop Azure compute solutions Practice Question
This AZ-204 practice question tests your understanding of develop azure compute solutions. 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 develop a containerized application that runs on Azure Container Instances (ACI). The application needs to securely access Azure SQL Database using a connection string. You want to minimize administrative effort and avoid storing secrets in the container image. What should you do?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable managed identity for the container group and use Microsoft Entra authentication to Azure SQL.
Option C is correct because enabling a managed identity for the container group allows the application to authenticate to Azure SQL Database using Microsoft Entra ID (formerly Azure Active Directory) without storing any secrets. The application requests an access token from the Azure Instance Metadata Service (IMDS) endpoint at 169.254.169.254, then uses that token to connect to Azure SQL. This eliminates the need to manage connection strings or secrets, minimizing administrative effort and keeping secrets out of the container image.
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.
✗
Embed the connection string in the container image as a configuration file.
Why it's wrong here
Embedding secrets in images is insecure and complicates rotation.
✗
Store the connection string in an environment variable in the container group.
Why it's wrong here
Environment variables can be viewed from the portal and are not secure.
✓
Enable managed identity for the container group and use Microsoft Entra authentication to Azure SQL.
Why this is correct
Managed identity eliminates the need for secrets and is the recommended approach.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Mount a volume from Azure Key Vault using a secret volume.
Why it's wrong here
This still requires managing secrets and mounting volumes.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse environment variables (Option B) as a secure alternative to embedding secrets, but environment variables are still plaintext and visible in the container's process list, whereas managed identity provides true secretless authentication.
Detailed technical explanation
How to think about this question
Under the hood, when managed identity is enabled on an ACI container group, Azure automatically creates a service principal in Microsoft Entra ID and injects an environment variable (IDENTITY_ENDPOINT) and a certificate into the container. The application uses the MSI endpoint (http://169.254.169.254/metadata/identity/oauth2/token) to obtain an access token for the SQL Database resource (https://database.windows.net). This token is then passed as the 'AccessToken' property in the SqlConnection object, bypassing the need for a username/password connection string. A real-world scenario is a microservice that must rotate credentials frequently; managed identity automates token refresh without any code changes.
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 managed identity for the container group and use Microsoft Entra authentication to Azure SQL. — Option C is correct because enabling a managed identity for the container group allows the application to authenticate to Azure SQL Database using Microsoft Entra ID (formerly Azure Active Directory) without storing any secrets. The application requests an access token from the Azure Instance Metadata Service (IMDS) endpoint at 169.254.169.254, then uses that token to connect to Azure SQL. This eliminates the need to manage connection strings or secrets, minimizing administrative effort and keeping secrets out of the container image.
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.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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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