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HOTSPOT You develop an application that sells Al generated images based on user input. You recently started a marketing campaign that displays unique ads every second day. Sales data is stored in Azure Cosmos DB with the date of each sale being stored in a property named 'whenFinished'. The marketing department requires a view that shows the number of sales for each unique ad. You need to implement the query for the view. How should you complete the query? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.
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Question 128 - AZ-204 discussion

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You are developing a solution that will use a multi-partitioned Azure Cosmos DB database. You plan to use the latest Azure Cosmos DB SDK for development.

The solution must meet the following requirements:

Send insert and update operations to an Azure Blob storage account.

Process changes to all partitions immediately.

Allow parallelization of change processing.

You need to process the Azure Cosmos DB operations.

What are two possible ways to achieve this goal? Each correct answer presents a complete solution.

NOTE: Each correct selection is worth one point.

A.
Create an Azure App Service API and implement the change feed estimator of the SDK. Scale the API by using multiple Azure App Service instances.
Answers
A.
Create an Azure App Service API and implement the change feed estimator of the SDK. Scale the API by using multiple Azure App Service instances.
B.
Create a background job in an Azure Kubernetes Service and implement the change feed feature of the SDK.
Answers
B.
Create a background job in an Azure Kubernetes Service and implement the change feed feature of the SDK.
C.
Create an Azure Function to use a trigger for Azure Cosmos DB. Configure the trigger to connect to the container.
Answers
C.
Create an Azure Function to use a trigger for Azure Cosmos DB. Configure the trigger to connect to the container.
D.
Create an Azure Function that uses a FeedIterator object that processes the change feed by using the pull model on the container. Use a FeedRange objext to parallelize the processing of the change feed across multiple functions.
Answers
D.
Create an Azure Function that uses a FeedIterator object that processes the change feed by using the pull model on the container. Use a FeedRange objext to parallelize the processing of the change feed across multiple functions.
Suggested answer: C

Explanation:

Azure Functions is the simplest option if you are just getting started using the change feed. Due to its simplicity, it is also the recommended option for most change feed use cases. When you create an Azure Functions trigger for Azure Cosmos DB, you select the container to connect, and the Azure Function gets triggered whenever there is a change in the container. Because Azure Functions uses the change feed processor behind the scenes, it automatically parallelizes change processing across your container's partitions.

Note: You can work with change feed using the following options:

Using change feed with Azure Functions

Using change feed with change feed processor

Reference:

https://docs.microsoft.com/en-us/azure/cosmos-db/read-change-feed

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asked 02/10/2024
Pilocz Pi
39 questions
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