Develop Solutions That Use Azure Blob Storage AZ-204 Practice Questions (Page 2)

Questions 6–10

1. 6expert · hard

   A company needs to provide a third-party vendor with write access to a specific container for exactly 7 days. The vendor does not have Azure AD credentials. The company wants to be able to revoke the vendor's access at any time. What is the best approach?

   • AGenerate a service SAS with write permission and an expiry of 7 days.
   • BMake the container public with write access.
   • CShare the storage account key with the vendor.
   • DCreate a stored access policy on the container with write permission and an expiry of 7 days, then generate a SAS token referencing the policy.
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2. 7application · medium

   A media processing pipeline needs to create a point-in-time copy of a large video blob before applying transformations. The copy must be immediately available for reading while the original remains unchanged. Which Azure SDK operation should be used?

   • ASet the blob's access tier to Archive and then read it.
   • BCreate a snapshot of the blob using CreateSnapshotAsync.
   • CCopy the blob to a new blob using StartCopyFromUriAsync and wait for the copy to complete.
   • DDownload the blob to memory and re-upload it with a new name.
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4. 8application · medium

   A developer needs to store the original filename and upload date as metadata on a blob. Which SDK operation should be used to set this metadata?

   • AUse the BlobServiceClient.SetMetadataAsync method.
   • BSet the Metadata property on the BlobClient and call SetMetadataAsync.
   • CUse the BlobContainerClient.SetMetadataAsync method.
   • DSet the Properties property on the BlobClient and call SetPropertiesAsync.
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5. 9expert · hard

   A developer is implementing a cleanup job that deletes blobs older than 90 days from a container. The job runs daily. The developer wants to avoid deleting blobs that are currently in use by other processes. Which approach should the developer use?

   • AUse blob leases to acquire a lease on each blob before deletion; if the lease cannot be acquired, skip the blob.
   • BUse the blob's metadata to store a 'last accessed' timestamp and delete only if older than 90 days.
   • CUse blob snapshots to check if the blob has been modified recently.
   • DUse a lifecycle management policy to delete blobs older than 90 days.
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6. 10application · medium

   A developer is writing a .NET application that needs to upload a file to Azure Blob Storage, then delete the local file after a successful upload. The developer uses the Azure SDK for .NET. Which code pattern should the developer use?

   • ACall UploadAsync, check the response status, then delete the local file.
   • BCall UploadAsync and delete the local file in a finally block.
   • CCall UploadAsync and rely on the SDK to delete the local file.
   • DDelete the local file first, then call UploadAsync.
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