Correct Answer : 8883
Explanation : The standard port number of Secure MQTT is 8883, and it is registered in IANA for Secure MQTT.
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.
