What is a dead-letter queue/topic used for?
Practice this question from Quiz: Kafka Consumer Design and Reliability, with options and an explanation.
Question
What is a dead-letter queue/topic used for?
Option A — Correct answer
Storing messages that cannot be processed after bounded retries
Option B
Increasing partition count automatically
Option C
Deleting successful events
Option D
Replacing the schema registry
Explanation
DLQs isolate poison messages for later inspection.