Correct answer & explanation
✓periodic: Data is sent at a fixed interval
Periodic sends at intervals, on-change sends on value change, target-defined leaves timing to the device, on-change-with-policy adds conditions, and periodic-and-on-change combines both.
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Same concept, more angles
1 more way this is tested on 350-401
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Drag and drop each streaming telemetry mode on the left to its matching trigger on the right.
medium- ✓ P1.periodic: data is sent at a fixed interval
- ✓ P2.on-change: data is sent when a monitored value changes
- ✓ P3.target-defined: device determines when to send updates
- ✓ P4.suppress-redundant: skip sending if value unchanged
- ✓ P5.heartbeat-interval: periodic keep-alive even if no change
Why P1: Periodic sends data at fixed intervals, on-change sends data when a value changes, and target-defined uses the device's own update policy.