Chapter 6 – Test Tools
Message Queue – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A component that stores messages between producers and consumers to enable asynchronous, decoupled communication.
In simple words
A buffer that holds messages while producers and consumers work at different speeds.
Exam tip
Testing queues covers ordering, at-least-once vs. exactly-once delivery, and dead-letter handling.
Related terms
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