How many types the capacitive touch sensors are classified?

Internet Of Things - Quiz(MCQ)

2 types

3 types

4 types

5 types

Correct Answer : 2 types

Explanation :

There are two types of capacitive touch sensors :

1. surface capacitive sensing

2. Projected capacitive sensing

* In surface capacitive sensing, an insulator is applied with a conductive coating on one side of its surface.

* In projected capacitive sensing, the whole surface is not changed, but an X-Y grid conductive material is placed between two insulating materials.

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Which challenge comes under IoT devices, reliable bidirectional signaling.

Security

Signaling

Presence detection

Power consumption

Correct Answer : Signaling

Explanation : With connected IoT devices, reliable bidirectional signaling is essential for collecting and routing data between devices.

Which service enables the user to periodically invoke an already defined IoT service?

Poll for the report

Get service

Get available services

Service updated resources

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.

______ are the general feature of our brain's perception.

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Strobes

Constant

Correct Answer : Strobes

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