DP-203 · Question #411
You are developing a solution that will stream to Azure Stream Analytics. The solution will have both streaming data and reference data. Which input type should you use for the reference data?
The correct answer is B. Azure Blob storage. Azure Stream Analytics supports two distinct input types: streaming data inputs and reference data inputs. Only Azure Blob storage (and Azure SQL Database) can serve as reference data sources.
Question
You are developing a solution that will stream to Azure Stream Analytics. The solution will have both streaming data and reference data. Which input type should you use for the reference data?
Options
- AAzure Service Bus
- BAzure Blob storage
- CAzure IoT Hub
- DAzure Event Hubs
How the community answered
(47 responses)- A15% (7)
- B74% (35)
- C2% (1)
- D9% (4)
Why each option
Azure Stream Analytics supports two distinct input types: streaming data inputs and reference data inputs. Only Azure Blob storage (and Azure SQL Database) can serve as reference data sources.
Azure Service Bus is not a supported input type for Azure Stream Analytics at all; it is used for message queuing and cannot serve as either a streaming or reference data input.
Azure Blob storage is one of the supported reference data input types in Azure Stream Analytics. Reference data is static or slowly changing data used to enrich streaming data via lookups; Blob storage is queried periodically by the job to refresh this dataset.
Azure IoT Hub is a supported streaming input type for telemetry ingestion, not a reference data source.
Azure Event Hubs is a supported streaming input type for high-throughput event ingestion, not a reference data source.
Concept tested: Stream Analytics reference data input types
Source: https://learn.microsoft.com/en-us/azure/stream-analytics/stream-analytics-use-reference-data
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