Question

Which five of the following statements about the end of the line things are TRUE?

A. Open loop control systems are more complex than closed loop control systems.
B. Transducers change one of their properties in response to changes in the environment.
C. All sensors require an analogue front-end (instrumentation amplifier).
D. A microphone is a kind of actuator.
E. A light-emitting diode (LED) is a kind of actuator.
F. The living lab at Curtin University uses vibration sensors to detect and measure movement in elevated walkways.
G. All IoT things have sensors and/or actuators.
H. The Ethernet is widely used to communicate IoT things over short distances.
I. RS-232 offers the fastest throughput in wired communications over short distances.
J. I2C simplifies the interconnection of components in a printed circuit board.

Answer 1

True statements include: transducers change properties in response to the environment, vibration sensors are used at Curtin University's living lab, IoT things have sensors and/or actuators, Ethernet is used for short-distance IoT communication, and I2C simplifies PCB component interconnection.

Step-by-step explanation:

Among the statements provided, five are true regarding the end of the line things.

• Transducers change one of their properties in response to changes in the environment, which is essential for converting physical phenomena into electrical signals.
• The living lab at Curtin University indeed uses vibration sensors to detect and measure movement in elevated walkways.
• It's correct that all IoT things have sensors and/or actuators, as these are the devices through which IoT interacts with the physical world.
• The Ethernet is well-known for its use in communicating IoT things over short distances, providing a reliable wired connection.
• I2C does indeed simplify the interconnection of components in a printed circuit board, allowing multiple devices to communicate over a simple two-wire interface.

It is important to note that open loop control systems are typically less complex than closed loop systems not more. Moreover, not all sensors require an analogue front-end (instrumentation amplifier), and neither a microphone nor an LED is a kind of actuator; a microphone is a sensor, and an LED is a kind of indicator or light source. Finally, RS-232 does not offer the fastest throughput in wired communications over short distances, with other interfaces like USB or Thunderbolt being faster.