Question 1

An IoT architecture receives millions of temperature readings per second from sensors worldwide.

You need to design a solution to ingest this massive stream of data and immediately calculate the average temperature over a 5-minute tumbling window. If the average exceeds a threshold, an alert must be sent to a Service Bus queue. The solution must be fully managed and require minimal custom code.

Which combination of services should you recommend?

Accepted Answer

Identify the big data ingestion engine (Event Hubs) and the real-time processing engine capable of windowing functions (Stream Analytics).

Question 2

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

Accepted Answer

Choosing Service Bus for ingestion. Service Bus is for transactional messaging (order processing), while Event Hubs is for telemetry (millions of small data points).

How to approach this question

Full Answer

Common mistakes

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