Develop Message-Based Solutions AZ-204 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   What happens to a Service Bus message if a receiver does not complete, abandon, or dead-letter it within the lock duration?

   • AThe message is moved to the dead-letter queue
   • BThe message is automatically completed
   • CThe message is permanently deleted
   • DThe message becomes visible to other receivers again
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2. 2application · medium

   A healthcare application uses Azure Service Bus queues to transmit patient appointment reminders. The processing service must handle each message exactly once, and if processing fails, the message should be retried after a delay. The service currently uses the Service Bus SDK's ProcessMessageAsync handler. What should you configure to achieve this behavior?

   • ASet the MaxDeliveryCount to 1 and use a dead-letter queue for failed messages.
   • BSet the RequiresSession property to true and use a session-enabled queue.
   • CUse the default retry policy and do not settle the message until processing is complete.
   • DSet the lock duration to 5 minutes and rely on automatic lock renewal.
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4. 3application · medium

   A company stores sensitive data in Azure Queue Storage. They want to restrict access so that only specific applications can read and write messages, and they want to avoid using account keys. Which approach should they use?

   • AUse a shared access signature (SAS) with a long expiry and distribute it to all applications.
   • BUse the account key and store it in the application's configuration file.
   • CUse Azure AD authentication with a managed identity and assign the 'Storage Queue Data Contributor' role to the application.
   • DUse a custom middleware to validate a token in each message.
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5. 4application · medium

   A development team is building a background job processor using Azure Queue Storage. They need to ensure that a message is not lost if the processing fails and that the message is retried after a delay. They are using the Azure SDK for Python. What should they do when processing a message?

   • ADelete the message only after successful processing, and update the visibility timeout to a delay on failure.
   • BUpdate the visibility timeout to 0 after processing.
   • CDelete the message immediately after reading it.
   • DUse a Service Bus queue instead of Queue Storage for automatic retries.
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6. 5application · medium

   A media company uses Azure Service Bus topics to distribute video encoding jobs. Each job message must be processed by exactly one encoder worker, but the company also needs to maintain an audit log of all jobs. They currently have a topic with a single subscription. What should they do to meet both requirements?

   • AUse a queue instead of a topic and have the audit log read from the dead-letter queue.
   • BCreate a second subscription on the same topic for the audit log.
   • CUse message sessions to route messages to different workers.
   • DPublish the message to two separate topics.
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