nerdexam
Microsoft

DP-203 · Question #56

Drag and Drop Question You have an Azure Stream Analytics job that is a Stream Analytics project solution in Microsoft Visual Studio. The job accepts data generated by IoT devices in the JSON format.

The correct answer is Add an Azure Stream Analytics Custom Deserializer Project (.NET) project to the solution.; Add .NET deserializer code for Protobuf to the custom deserializer project.; Change the Event Serialization format to Protobuf in the input.json file of the job and reference the DLL.. To support Protobuf deserialization in Azure Stream Analytics from Visual Studio, you must first add a Custom Deserializer Project (.NET) to the solution, which provides the framework for custom format handling. Next, you add the .NET deserializer code for Protobuf to that custom

Submitted by ashley.k· Mar 30, 2026Implement and manage data processing pipelines using Azure Stream Analytics, including configuring custom input serialization formats for IoT and streaming workloads (DP-203 / Azure Data Engineer Associate)

Question

Drag and Drop Question You have an Azure Stream Analytics job that is a Stream Analytics project solution in Microsoft Visual Studio. The job accepts data generated by IoT devices in the JSON format. You need to modify the job to accept data generated by the IoT devices in the Protobuf format. Which three actions should you perform from Visual Studio on sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order. Answer:

Exhibit

DP-203 question #56 exhibit

Answer Area

Drag items

Change the Event Serialization format to Protobuf in the input.json file of the job and reference the DLL.Add an Azure Stream Analytics Custom Deserializer Project (.NET) project to the solution.Add .NET deserializer code for Protobuf to the custom deserializer project.Add .NET deserializer code for Protobuf to the Stream Analytics project.Add an Azure Stream Analytics Application project to the solution.

Correct arrangement

  • Add an Azure Stream Analytics Custom Deserializer Project (.NET) project to the solution.
  • Add .NET deserializer code for Protobuf to the custom deserializer project.
  • Change the Event Serialization format to Protobuf in the input.json file of the job and reference the DLL.

Explanation

To support Protobuf deserialization in Azure Stream Analytics from Visual Studio, you must first add a Custom Deserializer Project (.NET) to the solution, which provides the framework for custom format handling. Next, you add the .NET deserializer code for Protobuf to that custom deserializer project (not the Stream Analytics project itself). Finally, you update the input.json file in the Stream Analytics project to reference the Protobuf serialization format and point to the compiled DLL from the deserializer project. This three-step sequence is the prescribed Visual Studio workflow for extending Stream Analytics with custom deserialization formats.

Topics

#Azure Stream Analytics#Custom Deserializer#Protobuf#Visual Studio Integration

Community Discussion

No community discussion yet for this question.

Sign up to join the discussion
Full DP-203 Practice