You are planning an Azure IoT Hub deployment with 50,000 devices that stream temperature, device ID, and timestamp data at about 50,000 records per second, and you require near real-time visualization. Which two services would you recommend to store and query this data for that workload? (Select two.)
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Correct answer: Azure Cosmos DB for NoSQL, Azure Time Series Insights.
Why this is the answer
Azure Cosmos DB for NoSQL is an excellent choice for storing high-volume, semi-structured IoT data due to its global distribution, low-latency access, and ability to handle high throughput (50,000 records/second). Its flexible schema accommodates the temperature, device ID, and timestamp data efficiently. Azure Time Series Insights is specifically designed for analyzing and visualizing large volumes of time-series data from IoT devices in near real-time. It provides powerful analytics capabilities and a rich visualization experience, making it ideal for the stated requirement. Azure Table Storage is less suitable for this scale and real-time visualization due to its more basic query capabilities and potentially higher latency for complex analytical queries. Azure Event Grid is an event routing service, not a data storage or query service; it would be used to route events, not to store and analyze the streaming data itself.
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