Correct Answer : All of the above
Explanation : The foundation of Raspberry Pi provides an operating system such as Linux. It also provides a non-Linux operating system, such as OpenBSD, NetBSD, HelenOS, etc.
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.