MQTT Architecture

Learning objectives

• explain the broker role in MQTT publish-subscribe routing
• name client roles, topic contracts, and broker state boundaries
• build a reviewable MQTT architecture record
• distinguish MQTT delivery evidence from application action evidence

Knowledge checks · 6

1. What is the main architectural role of an MQTT broker? mqttarchdepth-overview-check
2. A team says, "The device received the command because the publisher used MQTT QoS 1."… mqttarchdepth-practitioner-check
3. A subscriber uses the filter `factory/+/+/temperature`. Which published topic should… mqttarchdepth-underhood-check
4. Which statement best describes MQTT topics and topic filters? mqtttopicdepth-overview-check
5. A factory publishes `factory/line_a/machine_012/pressure`,… mqtttopicdepth-practitioner-check
6. Why can wildcard topic design improve reconnect behavior without using a catch-all `#`… mqtttopicdepth-underhood-check

Placed labs · 0

No lab is placed with this chapter.