Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
You are building a serverless image-processing solution using Azure Functions. The function must automatically run whenever a new image is uploaded to a blob container and must scale out to handle high upload volumes. Which trigger and hosting plan 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
Timer trigger with Consumption plan
A timer trigger runs on a fixed schedule, not in response to blob uploads. It does not activate on new blobs.
B
Best answer
Blob trigger with Consumption plan
The blob trigger runs when a new blob is created, and the Consumption plan automatically scales out to handle high volumes.
C
Distractor review
HTTP trigger with Premium plan
An HTTP trigger requires an incoming HTTP request; it does not fire automatically on blob uploads. The Premium plan is not needed for scaling.
D
Distractor review
Queue trigger with App Service plan
A queue trigger processes messages from an Azure Storage Queue, not blob events. The App Service plan would be unnecessary for the stated requirement and requires manual scaling or always-on.
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.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
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Question 2
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Question 3
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Question 4
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Question 5
You are developing an Azure Function that processes messages from an Azure Service Bus queue. The function uses a Service Bus queue trigger and runs on a Consumption Plan. The queue receives a high volume of messages in bursts. You need to ensure that the function scales out to handle the load but does not exceed 10 concurrent instances. Which configuration should you apply?
Question 6
You are monitoring an Azure App Service using Application Insights. You notice that the server response time is high for certain requests. You need to drill down to see which external dependencies (like databases or APIs) are causing the delay. Which Application Insights feature should you use?
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: Blob trigger with Consumption plan — An Azure Blob storage trigger is designed to run a function whenever a blob is created or updated in a container. The Consumption plan provides automatic scaling based on event load and charges only for execution time. A timer trigger runs on a schedule, not on blob events. An HTTP trigger requires an explicit HTTP request. A Queue trigger processes queue messages, not blob uploads. The Premium plan offers more features but is not necessary for basic blob-triggered scaling and would incur higher costs compared to the Consumption plan.
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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