What should you select?

You need to select the partition key for con-iot1. The solution must meet the IoT telemetry requirements.

What should you select?
A . the timestamp
B . the humidity
C . the temperature
D . the device ID

Answer: D


The partition key is what will determine how data is routed in the various partitions by Cosmos DB and needs to make sense in the context of your specific scenario. The IoT Device ID is generally the "natural" partition key for IoT applications.

Scenario: The iotdb database will contain two containers named con-iot1 and con-iot2.

Ensure that Azure Cosmos DB costs for IoT-related processing are predictable.

Reference: https://docs.microsoft.com/en-us/azure/architecture/solution-ideas/articles/iot-using-cosmos-db

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