Develop Message-Based Solutions AZ-204 Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A logistics company processes GPS location updates from delivery vehicles. Each vehicle sends a stream of location points that must be processed in the exact order they were generated. The company uses Azure Service Bus queues. The processing service runs as a set of stateless worker instances that scale out. You need to ensure that messages from each vehicle are processed sequentially while allowing different vehicles to be processed in parallel. What should you implement?

   • AUse a Service Bus topic with a subscription per vehicle and process each subscription independently.
   • BUse a separate Service Bus queue per vehicle and have each worker instance poll one queue.
   • CUse Service Bus message sessions with the SessionId set to the vehicle ID, and use a session-enabled queue.
   • DUse a single queue and set the MessageId to the vehicle ID, then use duplicate detection.
   Reveal Solution Discussion Select an answer first
2. 17expert · hard

   A healthcare application uses Azure Service Bus sessions to process patient data updates. Each patient has a session, and updates must be processed in order. The team notices that a single slow patient session is blocking other sessions from being processed. They want to improve throughput without breaking ordering. What should they do?

   • AUse multiple session receivers to process different sessions concurrently.
   • BDisable sessions and use a competing consumer pattern.
   • CUse a single session receiver and process messages sequentially.
   • DIncrease the lock duration for sessions to give more time for processing.
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   Which Service Bus feature allows a subscriber to receive only messages that match a specific condition, such as a message property?

   • ASubscription rules
   • BQueue filters
   • CDead-lettering
   • DMessage sessions
   Reveal Solution Discussion Select an answer first
5. 19foundation · easy

   Which scenario is the best fit for using Azure Service Bus instead of Azure Queue Storage?

   • AA publish/subscribe pattern where multiple applications need to receive the same message
   • BA simple FIFO queue with basic visibility timeouts for a background job processor
   • CSending push notifications to mobile devices
   • DStoring large binary files (e.g., images) for later processing
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   To use message sessions in Service Bus, what must be set on each message?

   • AA session ID
   • BA content type
   • CA correlation ID
   • DA unique message ID
   Reveal Solution Discussion Select an answer first