What happens to a message when it is dispatched to a Dead Letter Queue (DLQ)?

When a message is dispatched to a Dead Letter Queue (DLQ), it is placed in a holding area for messages that cannot be processed successfully by the application. This allows for the handling of problematic messages without losing them permanently.

Option B is correct because messages in a DLQ are typically awaiting manual processing. This means that developers or administrators can inspect the messages to determine why they failed and take appropriate action, such as reprocessing them, correcting any issues, or analyzing the errors that caused the failures.

The process of sending messages to a DLQ enables an organization to maintain control over message flow, ensuring that issues can be addressed without immediate loss of data. This is an essential aspect of robust message handling and helps maintain system integrity. Messages are not immediately retried, ignored, or discarded but are preserved for later inspection and resolution.