The Premium plan is the correct choice because it uniquely combines VNet integration for secure access to resources inside a virtual network with a maximum execution timeout of 30 minutes, far exceeding the Consumption plan’s default 10-minute cap, while still delivering serverless scaling without managing virtual machines. This directly addresses the need for long-running IoT command APIs that require both network isolation and extended duration. On the AZ-204 exam, this scenario tests your ability to differentiate hosting plans by their feature boundaries—a common trap is assuming the Consumption plan can handle longer timeouts or VNet integration, but only the Premium plan supports both. Remember the mnemonic “VIP for VNet, Integration, and Premium” to recall that VNet integration and longer timeouts are exclusive to the Premium plan.
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.
An Azure Functions IoT command API must run for up to 30 minutes and uses a VNet integration feature. The team wants serverless scaling without managing virtual machines. Which hosting plan should be used?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Premium plan
The Premium plan (Elastic Premium EP) is the correct choice because it supports VNet integration for accessing resources inside a virtual network, allows execution durations up to 30 minutes (the Consumption plan caps at 10 minutes by default), and provides serverless scaling without requiring you to manage virtual machines. This plan also offers always-ready instances to reduce cold start latency, which is critical for IoT command APIs.
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.
✗
Azure Batch pool
Why it's wrong here
Azure Batch is for batch compute jobs, not the standard hosting plan for Azure Functions.
✗
Consumption plan
Why it's wrong here
The Consumption plan has stricter timeout limits and fewer networking capabilities.
✗
App Service Free tier
Why it's wrong here
The Free tier is not suitable for production Functions workloads requiring VNet integration.
✓
Premium plan
Why this is correct
The Premium plan supports longer execution duration, VNet integration, pre-warmed instances, and serverless scale.
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 often assume the Consumption plan supports VNet integration and long timeouts because it is the default serverless option, but they overlook the explicit 10-minute timeout limit and the lack of native VNet integration without a dedicated gateway.
Detailed technical explanation
How to think about this question
The Premium plan uses the same serverless compute model as Consumption but runs on dedicated instances that support VNet integration via the regional VNet integration feature, which attaches the function app to a subnet in your VNet. The 30-minute timeout is enforced by the Azure Functions host, not the underlying App Service sandbox, and can be extended up to 60 minutes for Premium. In real-world IoT scenarios, this allows the function to process large batches of telemetry data or execute long-running device commands while securely accessing on-premises or isolated resources.
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.
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: Premium plan — The Premium plan (Elastic Premium EP) is the correct choice because it supports VNet integration for accessing resources inside a virtual network, allows execution durations up to 30 minutes (the Consumption plan caps at 10 minutes by default), and provides serverless scaling without requiring you to manage virtual machines. This plan also offers always-ready instances to reduce cold start latency, which is critical for IoT command APIs.
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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