Marcelo is an IoT developer who is working on a Fleet Management system.
The platform uses several functions like GeoJSON point for distance measurement, co-ordinate mapping, and function like Polygon for the development of the fleet management system with Azure IoT and Stream Analytics.
He used Stream analytics for complex event processing streams, which ingests data from IoT edge to IoT hub, followed by stream analytics processing engine.
Which type of function in Stream analytics can he choose for executing the functions like GeoJSON points, Polygon, etc.?
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A. B. C. D.Correct Answer: C.
Marcelo, an IoT developer, is working on a Fleet Management system that utilizes several functions like GeoJSON point for distance measurement, coordinate mapping, and function like Polygon for the development of the fleet management system with Azure IoT and Stream Analytics. Stream Analytics is used for complex event processing streams, which ingests data from IoT edge to IoT hub, followed by stream analytics processing engine.
To execute functions like GeoJSON points, Polygon, etc. in Stream Analytics, Marcelo can choose Geospatial functions. Geospatial functions are built-in functions provided by Stream Analytics that can be used to perform spatial calculations on data. These functions are designed to work with geographic data like latitude, longitude, and other location-based data types.
Some of the geospatial functions provided by Stream Analytics include:
ST_DISTANCE: This function is used to calculate the distance between two points on a map.
ST_WITHIN: This function is used to determine whether a given point is within a specified area or polygon.
ST_INTERSECTS: This function is used to determine whether two specified areas or polygons intersect.
ST_UNION: This function is used to combine two or more areas or polygons to create a single area or polygon.
Therefore, to perform operations like distance measurement, coordinate mapping, and polygon analysis, Marcelo can choose Geospatial functions in Stream Analytics.