Coursera | Introduction to the Internet of Things and Embedded Systems

Module 2 Quiz

Module 2 Quiz >> Introduction to the Internet of Things and Embedded Systems

1. A light sensor (photoresistor) is an analog sensor.

  • True
  • False

2. A microphone is a digital sensor.

  • True
  • False

3. A push button is an analog sensor.

  • True
  • False

4. A keyboard is a digital sensor.

  • True
  • False

5. Which of the following components are actuators? Select all that apply.

  • a servo motor
  • a thermometer
  • an LED
  • a CMOS camera
  • a heating element

6. The component of an embedded system that executes a program is:

  • an FPGA
  • an analog-to-digital converter
  • a microcontroller
  • a sensor/actuator pair

7. An analog-to-digital converter is common in embedded systems because

  • many sensors are analog while the microcontroller is digital.
  • analog computation is faster than digital.
  • analog computation uses less battery power than digital computation.
  • digital data is generally more compact than analog.

8. Consider the anti-lock braking system in a car. What are the main sensors and actuators of this system from the perspective of the driver?

  • accelerator pedal and turn signal
  • gearshift and dashboard monitor
  • brake pedal and steering wheel
  • brake pedal and brake calipers and pads

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