Question 1

You are designing a serverless architecture using Azure Functions.

The function will be triggered by messages in an Azure Service Bus queue. The workload is highly unpredictable; it may process zero messages for days, and then suddenly need to process 10,000 messages in a few minutes.

Cost optimization is a primary concern. You want to pay ONLY when the function is actively executing code.

Which hosting plan should you choose?

Accepted Answer

Match 'pay ONLY when executing' and 'unpredictable workload' to the true serverless billing model.

Question 2

What mistakes do candidates make on this AZ-305 question?

Accepted Answer

Choosing Premium plan to handle the sudden spike. While Premium handles spikes well (no cold starts), it violates the strict cost requirement to pay ONLY when executing.

How to approach this question

Full Answer

Common mistakes

Practice the full Azure Solutions Architect Expert AZ-305 Practice Exam 2

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