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 are developing a containerized application that will be deployed to Azure Container Instances (ACI). The application consists of a web front-end and a background worker that processes messages from an Azure Storage Queue. You need to ensure that the worker container runs continuously and processes messages as they arrive. The solution must minimize cost and management overhead. 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
✓
Deploy the worker as a container group in ACI with the restart policy set to Always.
Option D is correct because ACI with a restart policy of Always ensures the worker container restarts immediately after it finishes processing a message, allowing it to continuously poll the Azure Storage Queue for new messages. This minimizes cost by using a serverless container model without provisioning VMs or managing orchestration, and it reduces management overhead compared to alternatives like Azure Container Apps or VMs.
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 Azure Container Apps with a scale rule that triggers on queue length.
Why it's wrong here
Container Apps is more complex and expensive than needed for a simple continuous worker.
✗
Run the worker inside an Azure virtual machine with a container runtime.
Why it's wrong here
This adds unnecessary management overhead and cost for a single container.
✗
Deploy the worker as a container in ACI with the restart policy set to OnFailure.
Why it's wrong here
OnFailure only restarts if the container exits with a non-zero code; it won't restart if the process completes successfully.
✓
Deploy the worker as a container group in ACI with the restart policy set to Always.
Why this is correct
ACI with Always restart ensures the worker keeps running and is cost-effective with no orchestration overhead.
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.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates mistakenly choose the OnFailure restart policy (Option C) thinking it will restart the container after each message, but they overlook that a successful exit (exit code 0) does not trigger a restart, causing the worker to stop after processing one message.
Detailed technical explanation
How to think about this question
ACI's restart policy of Always keeps the container running indefinitely, restarting it immediately after any exit (success or failure), which is ideal for a long-running worker that polls a queue in a loop. Under the hood, ACI uses a container group as the unit of deployment, and the Always policy ensures the container's process is restarted by the ACI runtime, not by an external orchestrator. In a real-world scenario, the worker would use an infinite loop with a sleep interval (e.g., 10 seconds) to poll the queue, and the Always policy provides resilience against crashes without needing a separate supervisor process.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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: Deploy the worker as a container group in ACI with the restart policy set to Always. — Option D is correct because ACI with a restart policy of Always ensures the worker container restarts immediately after it finishes processing a message, allowing it to continuously poll the Azure Storage Queue for new messages. This minimizes cost by using a serverless container model without provisioning VMs or managing orchestration, and it reduces management overhead compared to alternatives like Azure Container Apps or VMs.
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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