- A
Set the functionTimeout property in host.json to 10 minutes
Correct. The functionTimeout in host.json can be increased to 10 minutes on the Consumption plan, extending the execution time without changing the plan.
- B
Migrate the function app to the Premium or Dedicated plan
Why wrong: Incorrect. Migrating to Premium or Dedicated plan changes the plan, which the requirement explicitly says not to do. While it would allow longer timeouts, it is not allowed under the constraint.
- C
Use Durable Functions to split the work
Why wrong: Incorrect. Durable Functions do not change the per-function execution timeout. The individual function still has the same 5-minute limit (unless increased via host.json).
- D
Increase the visibility timeout of the queue message
Why wrong: Incorrect. Increasing the visibility timeout of the queue message only controls when the message becomes visible again after a failed attempt, not the function's execution timeout.
Azure Functions Timeout on Consumption Plan – Migrate to Premium
This AZ-204 practice question tests your understanding of monitor, troubleshoot, and optimize azure solutions. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: consumption plan timeout. 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 Azure Functions app (running on the Consumption plan) processes messages from an Azure Storage queue. Occasionally, the function fails due to a timeout after 5 minutes. You need to increase the maximum execution time without changing the plan. What should you do?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Set the functionTimeout property in host.json to 10 minutes
On the Consumption plan, the `functionTimeout` property in host.json can be set up to 10 minutes (default is 5 minutes). Since the function fails after 5 minutes, increasing `functionTimeout` to 10 minutes resolves the timeout without changing the plan. Option B is incorrect because migrating to Premium or Dedicated plan changes the plan, violating the constraint. Option C is incorrect because Durable Functions do not extend the per-function execution timeout; the individual function still has the same limit. Option D is incorrect because the visibility timeout affects when a message reappears, not the function's execution timeout.
Key principle: Consumption plan timeout
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Set the functionTimeout property in host.json to 10 minutes
Why this is correct
Correct. The functionTimeout in host.json can be increased to 10 minutes on the Consumption plan, extending the execution time without changing the plan.
Related concept
Consumption plan timeout
- ✗
Migrate the function app to the Premium or Dedicated plan
Why it's wrong here
Incorrect. Migrating to Premium or Dedicated plan changes the plan, which the requirement explicitly says not to do. While it would allow longer timeouts, it is not allowed under the constraint.
- ✗
Use Durable Functions to split the work
Why it's wrong here
Incorrect. Durable Functions do not change the per-function execution timeout. The individual function still has the same 5-minute limit (unless increased via host.json).
- ✗
Increase the visibility timeout of the queue message
Why it's wrong here
Incorrect. Increasing the visibility timeout of the queue message only controls when the message becomes visible again after a failed attempt, not the function's execution timeout.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates might think that the Consumption plan has a fixed 5-minute timeout, but it can be increased to 10 minutes via the functionTimeout setting in host.json. However, if more than 10 minutes is needed, upgrading the plan is necessary.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Consumption plan timeout
- functionTimeout property
- Premium plan timeout
- Durable Functions
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
Consumption plan timeout
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.
Visual reference
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
What to study next
Got this wrong? Here's your next step.
Review consumption plan timeout, then practise related AZ-204 questions on the same topic to reinforce the concept.
- →
Monitor, troubleshoot, and optimize Azure solutions — study guide chapter
Learn the concepts, then practise the questions
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Monitor, troubleshoot, and optimize Azure solutions practice questions
Targeted practice on this topic area only
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All AZ-204 questions
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Microsoft Azure Developer Associate AZ-204 study guide
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FAQ
Questions learners often ask
What does this AZ-204 question test?
Monitor, troubleshoot, and optimize Azure solutions — This question tests Monitor, troubleshoot, and optimize Azure solutions — Consumption plan timeout.
What is the correct answer to this question?
The correct answer is: Set the functionTimeout property in host.json to 10 minutes — On the Consumption plan, the `functionTimeout` property in host.json can be set up to 10 minutes (default is 5 minutes). Since the function fails after 5 minutes, increasing `functionTimeout` to 10 minutes resolves the timeout without changing the plan. Option B is incorrect because migrating to Premium or Dedicated plan changes the plan, violating the constraint. Option C is incorrect because Durable Functions do not extend the per-function execution timeout; the individual function still has the same limit. Option D is incorrect because the visibility timeout affects when a message reappears, not the function's execution timeout.
What should I do if I get this AZ-204 question wrong?
Review consumption plan timeout, then practise related AZ-204 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Consumption plan timeout
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Last reviewed: Jun 20, 2026
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