Crucial Exams

Microsoft Azure Developer Associate AZ-204 Practice Question

You are developing a C# app that updates the Balance property of a document in an Azure Cosmos DB SQL API container that uses /accountId as the partition key. The code must minimize request units by sending only the modified field and must fail if the item's ETag has changed. Which SDK approach should you use?

  • Call UpsertItemAsync() after changing the Balance property in memory and set EnableContentResponseOnWrite to false.

  • Call ReplaceItemAsync() and pass ItemRequestOptions with IfMatchEtag set to the current ETag.

  • Call PatchItemAsync() with a PatchOperations.Replace("/Balance", newBalance) operation and PatchItemRequestOptions that sets IfMatchEtag to the current ETag.

  • Use a transactional batch with a ReplaceItem operation for the item and set the ConsistencyLevel to Strong.

Microsoft Azure Developer Associate AZ-204
Develop for Azure storage
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