Exam PL-400 topic 7 question 14 discussion

Answer A makes sense as explained. Generally, a QUEUE (of any type) has 3 functions: 1) Enqueue (to collect a message); 2) Peek (to look at but not remove message from the queue); and 3) Dequeue (or Serve) (to remove a message from the queue). Having a Mode with options to "PEEK" or "DEQUEUE/SERVE" or something similar should help figure this out.

https://learn.microsoft.com/en-us/azure/service-bus-messaging/service-bus-queues-topics-subscriptions#receive-modes

ULTRA CORRECTOMUNGA

ChatGPT confirms that Answer A is correct: If the request is to delete the message as soon as it is read, regardless of whether it is processed successfully or not, then you should use the ReceiveMode property of the QueueClient or SubscriptionClient class to specify the behavior of the message receiver. The ReceiveMode property can be set to either PeekLock or ReceiveAndDelete. If PeekLock mode is used, the message will be locked for processing when it is read, and the lock will be released when the message is completed, abandoned, or the lock expires. If ReceiveAndDelete mode is used, the message will be deleted from the queue as soon as it is read, regardless of whether it is processed successfully or not. Therefore, to ensure that the message queue is cleared properly when a message is read, you should use the ReceiveAndDelete mode of the QueueClient or SubscriptionClient class, rather than the BrokeredMessage class as I previously mentioned. The correct answer is not B. BrokeredMessage, but A. ReceiveMode.