Which layer uses ZigBee, Z-Wave, or Bluetooth for inter-device communication?

Which layer uses ZigBee, Z-Wave, or Bluetooth for inter-device communication?

• A. Cloud Layer
• B. Device Layer
• C. Process Layer
• D. Communication Layer

Answer: (C)

ZigBee, Z-Wave, and Bluetooth are short-range wireless protocols that connect devices to exchange data and control signals. This networking capability is handled by the Communications Layer, which is responsible for how devices talk to one another and how messages flow between sensors, actuators, gateways, and onward to processing or cloud services. It sits between the device hardware and the higher-level processing or cloud layers. The device layer contains the actual hardware (sensors/actuators), the process layer handles data processing and analytics, and the cloud layer provides centralized storage and services. So, for inter-device communication using those protocols, the layer in charge is the Communications Layer.

ZigBee, Z-Wave, and Bluetooth are short-range wireless protocols that connect devices to exchange data and control signals. This networking capability is handled by the Communications Layer, which is responsible for how devices talk to one another and how messages flow between sensors, actuators, gateways, and onward to processing or cloud services. It sits between the device hardware and the higher-level processing or cloud layers. The device layer contains the actual hardware (sensors/actuators), the process layer handles data processing and analytics, and the cloud layer provides centralized storage and services. So, for inter-device communication using those protocols, the layer in charge is the Communications Layer.