35 Questions
What is the primary function of a Z-Wave hub in a Z-Wave network?
Receive commands from smart home applications on user device
How do Z-Wave signals reach the intended device in a Z-Wave network?
Via hopping through other Z-Wave devices
What differentiates Z-Wave from Wi-Fi in terms of range and power consumption?
Z-Wave has a longer range and lower power consumption
What best describes the communication technology used by Z-Wave networks?
Mesh network technology
In a Z-Wave network, what is the maximum number of devices a command can hop through before reaching its destination device?
4 devices
What is the recommended distance for placing Z-Wave devices from each other to ensure signal strength?
50 feet apart
What is one of the key features of Zigbee 3.0 networks?
Support for up to 65,000 nodes per network
How does connecting Zigbee 3.0 networks to the IP domain enhance functionality?
Opens up wireless monitoring and control from a variety of devices on LAN, WAN, and the Internet
What type of network topologies does Zigbee support?
Multiple topologies including point-to-point, point-to-multipoint, and mesh networks
What security feature does Zigbee employ for data connections?
128-bit AES encryption
What potential advantage does the Zigbee protocol offer for battery-operated devices?
Battery life lasting several years
What is the primary function of the application layer in the IoT architecture?
Communicating directly with users
Which layer in the IoT architecture is responsible for examining and interpreting data from IoT devices?
Data processing layer
What is the role of middleware services in the application layer of IoT architecture?
Enabling communication between IoT systems
Which component of the IoT architecture is in charge of gathering data from physical object sensors and actuators?
Sensing layer
What distinguishes the application layer from the data processing layer in the IoT architecture?
The application layer enables communication with users while the data processing layer interprets data.
In the context of IoT architecture, what is the function of the information processing layer?
Making decisions through analytics
What is the main responsibility of the Sensing Layer in the IoT architecture?
Gathering data from various sources
Which layer of the IoT architecture is primarily focused on establishing connectivity and communication?
Network Layer
What is a communication protocol in the context of IoT?
A system that enables information exchange between entities
Which of the following is NOT a network technology commonly used in IoT?
LAN
What distinguishes the Sensing Layer from the Communication Layer in IoT architecture?
The Sensing Layer focuses on data collection, while the Communication Layer focuses on transmitting data
Which of the following communication protocols is specifically designed for resource-constrained devices in the Internet of Things?
Constrained Application Protocol (CoAP)
What is the main difference between a microcontroller (MCU) and a microprocessor (MPU)?
MCU has all necessary basic peripherals on one chip while MPU requires additional peripherals
Which statement is true about microcontrollers (MCUs) in comparison to microprocessors (MPUs)?
MCUs are less sophisticated and have limited functionality
Why are microcontrollers (MCUs) often referred to as 'system on a chip' (SoC)?
Because they have all necessary basic peripherals on a single chip
In terms of functionality, how do microprocessors (MPUs) generally differ from microcontrollers (MCUs)?
MPUs are multipurpose and require additional components for operation
What is the primary reason that microcontrollers (MCUs) are usually dedicated to perform a single defined function?
To prevent overloading the integrated circuits
Which feature of microprocessors (MPUs) distinguishes them from microcontrollers (MCUs)?
Requiring additional components and I/O for operation
Which of the following best describes the purpose of Bluetooth Low Energy (BLE) compared to Classic Bluetooth?
Providing reduced power consumption and cost
How does a BLE central device differ from a peripheral device in its role within a connection-oriented communication?
A central device initiates requests for connection
What distinguishes 6LoWPAN from Bluetooth Low Energy (BLE) in terms of device interaction?
6LoWPAN supports interaction with 802.15.4 devices
In the context of BLE technology, what is meant by the 'exchange' step in the communication process?
Data sharing between connected devices
How does a peripheral device in a BLE connection differ from a central device when establishing communication?
Can receive commands from the central device
What distinguishes BLE from Classic Bluetooth in terms of their intended power consumption?
BLE provides considerably reduced power consumption
Learn about the Constrained Application Protocol (CoAP) which is designed for communication between devices on constrained networks and the wider Internet. Understand how CoAP enables wireless sensor devices to communicate using protocols similar to HTTP.
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