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Azure Blob Storage – SDK, Properties and Metadata · AZ-204: Developing Solutions for Microsoft Azure Develop for Azure Storage

A .NET service uploads a JSON document and must set its content type and a custom metadata value during the upload. Which code correctly configures t…

Practice question from Azure Blob Storage – SDK, Properties and Metadata (AZ-204: Developing Solutions for Microsoft Azure Develop for Azure Storage), with the correct answer and a step-by-step solution.

medium · MCQ · Q-356E9B

A .NET service uploads a JSON document and must set its content type and a custom metadata value during the upload. Which code correctly configures the upload?

  1. A.var options = new BlobUploadOptions { HttpHeaders = new BlobHttpHeaders { ContentType = "application/json" }, Metadata = new Dictionary<string, string> { ["source"] = "orders" } }; await blob.UploadAsync(stream, options);Correct answer
  2. B.var options = new BlobUploadOptions { Tags = new Dictionary<string, string> { ["ContentType"] = "application/json", ["source"] = "orders" } }; await blob.UploadAsync(stream, options);
  3. C.await blob.SetMetadataAsync(new Dictionary<string, string> { ["ContentType"] = "application/json", ["source"] = "orders" }); await blob.UploadAsync(stream);
  4. D.await blob.UploadAsync(stream, new BlobUploadOptions { Metadata = new Dictionary<string, string> { ["ContentType"] = "application/json", ["source"] = "orders" } });

Solution

BlobUploadOptions.HttpHeaders configures HTTP properties, and BlobUploadOptions.Metadata configures custom metadata. ContentType should not be represented as metadata or a tag.

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