Correct Answer : 2 types
Explanation : Electronic type hygrometers or humidity sensors can broadly divided into two categories: one employs capacitive sensing principle, while other use resistive effects.
Correct Answer : Signaling
Explanation : With connected IoT devices, reliable bidirectional signaling is essential for collecting and routing data between devices.
Correct Answer : Poll for the report
Explanation : Poll for the report service enables the user to periodically invoke an already defined IoT service within specified time intervals.
Correct Answer : Strobes
Explanation : Evidence gathered from the finding of a landmark Australian Italian collaboration suggests that oscillations or strobes are a general feature of our brains perception.