Chapter 3: IoT & M2M Concepts
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Questions and Answers

What is a primary characteristic of ZigBee that makes it suitable for smart home devices?

  • High data transfer rate
  • Heavy construction requirements
  • Reliance on a central router
  • Low power consumption (correct)

    • Which application layer protocol is widely recognized in industrial environments due to being openly published and royalty-free?

  • Modbus (correct)
  • ZigBee
  • Bluetooth
  • M-Bus

    • What is the main transport layer technology used by M-Bus for communication?

  • Coaxial cables
  • Fiber optic cables
  • Wi-Fi
  • Two wires (correct)

    • Which of the following statements accurately describes Bluetooth technology?

    <p>It primarily connects peripheral devices over short distances.</p> Signup and view all the answers

    What type of network does ZigBee facilitate among its devices?

    <p>Mesh network</p> Signup and view all the answers

    What is the primary purpose of the Wireless M-Bus protocol?

    <p>Remote reading of energy meters</p> Signup and view all the answers

    Which frequency band does the Wireless M-Bus protocol operate in?

    <p>868 MHz</p> Signup and view all the answers

    What is a characteristic of Power Line Communication (PLC) technology?

    <p>It requires specific types of wiring for each application.</p> Signup and view all the answers

    What does the IEEE 802.15.4 standard primarily address?

    <p>Mesh networking capabilities for IoT systems</p> Signup and view all the answers

    What role does an M2M Gateway serve in communication networks?

    <p>To allow non-IP based protocols to communicate with external networks</p> Signup and view all the answers

    What is the primary purpose of Machine to Machine (M2M) communication?

    <p>To facilitate remote monitoring, control, and data exchange between machines</p> Signup and view all the answers

    Which of the following communication protocols is NOT typically used for M2M area networks?

    <p>HTTP</p> Signup and view all the answers

    What is a characteristic of proprietary protocols used in M2M communication?

    <p>They are often designed for specific requirements and optimized for performance</p> Signup and view all the answers

    Which of the following describes non-IP based communication?

    <p>Networking that does not utilize the Internet Protocol as its primary communication method</p> Signup and view all the answers

    Which of these protocols is identified as a non-IP based protocol used in M2M applications?

    <p>IEEE 802.15.4</p> Signup and view all the answers

    What type of communication protocols do M2M systems primarily use?

    <p>Optimized protocols designed for machine-to-machine communication</p> Signup and view all the answers

    In terms of data collection, how do IoT systems differ from M2M systems?

    <p>IoT data is collected in the cloud while M2M data is collected on-premises</p> Signup and view all the answers

    What distinguishes the 'things' in IoT from the machines in M2M?

    <p>Things in IoT encompass a wider variety of interconnected devices</p> Signup and view all the answers

    What is the main emphasis of M2M systems compared to IoT systems?

    <p>Prioritizing hardware with embedded modules in M2M</p> Signup and view all the answers

    Which of the following best describes the applications of data collected in M2M systems?

    <p>Accessed by on-premises applications such as service management and diagnosis</p> Signup and view all the answers

    Study Notes

    Chapter 3: IoT & M2M

    • Chapter 3 of the Internet of Things (IoT) book focuses on IoT and Machine-to-Machine (M2M) concepts.
    • M2M refers to networking machines for remote monitoring, control, and data exchange.
    • M2M is a subset of IoT and encompasses a specific aspect of the broader IoT landscape.
    • M2M area networks consist of machines (M2M nodes) with embedded hardware for sensing, actuation, and communication.
    • Various communication protocols support M2M local area networks, including ZigBee, Bluetooth, ModBus, M-Bus, Wireless M-Bus, Power Line Communication (PLC), 6LoWPAN, and IEEE 802.15.4.
    • M2M area networks can utilize either wired or wireless (IP-based) networks for communication.
    • Proprietary protocols (e.g., Zigbee, Z-Wave, Bluetooth Low Energy (BLE)) are developed by specific organizations to fulfill unique requirements, potentially offering low power consumption, low latency, or efficient bandwidth use.
    • Non-IP-based communication protocols, like IEEE 802.15.4, are used in applications such as low-power, low-data-rate wireless personal area networks (LPWANs) and in personal area networks (PANs).
    • The communication network acts as a connecting bridge to remote M2M area networks.

    Differences and Similarities between M2M and IoT

    • M2M focuses heavily on specialized machine-to-machine communication protocols.
    • IoT utilizes standardized internet protocols, commonly HTTP, TCP/IP, and WebSockets.
    • M2M systems typically have homogeneous machine types, whereas IoT encompasses a wide variety of "things" (physical objects, sensors, etc.).
    • M2M systems often focus on real-time data transmission and control, unlike IoT systems that frequently emphasize data management and analysis.
    • M2M data collection and analysis are usually managed on-premises, in contrast to IoT data, often stored and analyzed in cloud environments.
    • M2M applications generally handle point-to-point communication with a smaller scale than IoT.
    • IoT often handles device variety, scalability, complexity, and interoperability in distributed, broader network deployments.

    SDN and NFV for IoT

    • Software-Defined Networking (SDN) is a network architecture that separates control plane from data plane, centralizing the network control.
    • SDN leverages programmable open APIs to support various network level applications and communication.
    • SDN architectures typically utilize the standard communication interface (OpenFlow) for network level communication.
    • Network Function Virtualization (NFV) is a technology that enables virtualization of network functions, abstracting them from hardware.
    • NFV runs network functions (like firewalls, load balancers) on standard servers or cloud platforms, decoupling them from underlying hardware.
    • The integration of NFV and IoT enables a flexible, scalable, and cost-efficient network solution.
    • NFV provides the infrastructure on which SDN can run, enabling effective resource utilization, service agility, and centralized network management in IoT applications.

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    Related Documents

    Chapter 3: IoT & M2M PDF

    Description

    Explore Chapter 3 of the Internet of Things book, which delves into IoT and Machine-to-Machine (M2M) concepts. Understand networking for remote monitoring, various communication protocols, and the role of M2M in the wider IoT context. This chapter covers essential aspects of machine networking, including both wired and wireless technologies.

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