Final check on IoT Theory

What are the three components found in an IoT Environment?

• Router, Hub, Switches
• Devices, Gateway, Platform
• Ultrasonic, Raspberry Pi and Nano
• Arduino Uno, Terminal and Raspberry Pi

What addresses are used by Switches to forward data to other computers on the LAN in a more orderly and efficient manner compared to hubs?

• MAC addresses
• IPv4 addresses
• IPv6 addresses
• 4 bits address

Identify the network device that forwards data packets between computer networks. It performs the traffic directing functions on the Internet (WAN port).

• Extender
• Hub
• Router
• Switch

Identify two output device groups.

• Displays and Actuators
• Ultrasonics and TMP36
• Command Prompt and ThingSpeak
• Ultrasonic and OLED

A device that measures physical input from its environment and converts it into data that can be interpreted by either a human or a machine is known as a

• actuator
• sensor
• display
• output device

The DHT11 sensors are made of two parts, a capacitive humidity sensor and a

• resistor
• resistor humdity sensor
• thermistor
• thermocouple

An object is detected by an ultrasonic sensor. The time taken from the transmission to reception of reflected waves is 588 μs. Given the speed of sound is 0.0343 cm/μs, calculate the distance of the object.

• 6.60cm

• 13.19cm

• 20.16cm
• 26.38cm

Which type of sensor utilizes a small polymer comb that increases and decreases in size as the humidity changes ?

• Thermistor
• Thermocouple
• Resistive Humidity Sensor
• Capacitive Humidity Sensor

Which type of temperature sensor is able to support higher temperatures and larger temperature ranges ?

• Thermistor
• Thermocouple
• Ultrasonic
• DHT11

Which type of electronic signal is following the general trend of variation, but are continuous in nature?

• Analog
• Digital
• Command Prompt
• Terminal