DP-420 · Question #181
You plan to implement an Azure Cosmos DB container that will store telemetry data from 1,000 IoT devices. The data will be updated once every minute. An app will read the data once daily and generate
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Question
You plan to implement an Azure Cosmos DB container that will store telemetry data from 1,000 IoT devices. The data will be updated once every minute. An app will read the data once daily and generate aggregated reports that summarize the state of each device. You need to configure a partition key for the container. The solution must meet the following requirements:
- Minimize the possibility of reaching the partition limits.
- Spread read and write operations evenly across the partitions.
- Minimize how long it takes to locate a specific set of telemetry
values. To what should you set the partition key?
Options
- Athe device ID and date
- Bthe device ID
- Cthe date and a random value
- Dthe date
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