M2M and IoT Device Characteristics Quiz
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Questions and Answers

Which of the following is NOT a typical characteristic of a device in M2M and IoT?

  • Fixed power source
  • Microcontroller with limited memory
  • Communication capabilities (cellular, wireless or wired)
  • Complex User Interface with touch screen (correct)

    • Basic devices in M2M and IoT always have advanced user interfaces for complex interactions.

    False (B)

    What is the typical power consumption range for very constrained devices used in M2M and IoT applications?

    milli- to micro-Watt range

    A __________ is a hardware unit that can sense aspects of its environment and/or actuate tasks in its environment.

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

    Match the following device characteristics with their corresponding descriptions:

    <p>Microcontroller = Processing unit with memory and storage Power Source = Source of energy for device operation Sensors and Actuators = Components for environmental monitoring or performing actions Execution Environment = Management of application lifecycle and API</p> Signup and view all the answers

    Which of these is a capability enabled on tiny System-on-a-Chip (SoC) solutions?

    <p>Hosting an entire TCP/IP stack (D)</p> Signup and view all the answers

    All devices in M2M and IoT networks need a full-featured operating system.

    <p>False (B)</p> Signup and view all the answers

    Name two categories that devices can be grouped into.

    <p>Basic Devices and Advanced Devices</p> Signup and view all the answers

    Which of the following is NOT a factor contributing to the 'lossy' nature of low-rate, low-power communication technologies?

    <p>High computational capabilities of devices (C)</p> Signup and view all the answers

    ETSI's use cases fully encompass all potential deployment scenarios and environments for IoT systems.

    <p>False (B)</p> Signup and view all the answers

    What is the fundamental mechanism suggested for bridging heterogeneous physical and link layer technologies?

    <p>IP connectivity</p> Signup and view all the answers

    Power Line Communication (PLC) involves communicating over power, phone, or _________ lines.

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

    At low frequencies, what is a typical characteristic of PLC ?

    <p>Low bit rates over kilometers (B)</p> Signup and view all the answers

    LAN and WLAN technologies are not relevant for M2M and IoT applications.

    <p>False (B)</p> Signup and view all the answers

    What is the purpose of pulsing the electrical lines in PLC?

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

    Match the following communication technologies with their descriptions:

    <p>PLC = Communication over power lines LAN = High bandwidth, reliable for local networking WLAN = Wireless networking for local connectivity</p> Signup and view all the answers

    Which IEEE standard is specifically designed to enhance throughput and is useful for streaming multimedia?

    <p>IEEE 802.11n (C)</p> Signup and view all the answers

    Bluetooth Low Energy (BLE) is designed for long-range applications requiring high data rates.

    <p>False (B)</p> Signup and view all the answers

    What term refers to managing the active periods of the Radio Frequency Integrated Circuit (RFIC) during transmissions and listening to the medium?

    <p>radio duty cycling</p> Signup and view all the answers

    The IEEE 802.15.4 family of standards was used in practical research and experimentation in the field of ______.

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

    Match the following IEEE standards with their primary purpose:

    <p>IEEE 802.3 = Ethernet IEEE 802.11 = Wi-Fi IEEE 802.15.4 = Low-Rate Wireless Personal Area Networks</p> Signup and view all the answers

    Which frequency band is primarily targeted by ongoing work on IEEE 802.11ac?

    <p>5 GHz band (A)</p> Signup and view all the answers

    IEEE 802.11ah uses collaboration to extend range and improve energy efficiency.

    <p>True (A)</p> Signup and view all the answers

    What is the primary application of ZigBee, according to the text?

    <p>low-energy communications specifications</p> Signup and view all the answers

    What is the primary goal of the PHY Amendment for Smart Utility Networks (SUN), IEEE 802.15.4g?

    <p>To extend the operational coverage of networks up to tens of kilometers. (C)</p> Signup and view all the answers

    6LoWPAN was developed to transport IPv4 over IEEE 802.15.4-2003 networks.

    <p>False (B)</p> Signup and view all the answers

    What are the three main objectives addressed by 6LoWPAN when transporting IPv6?

    <p>fragmentation, reassembly, and header compression</p> Signup and view all the answers

    RPL is a routing protocol for Low Power and Lossy Networks, which are characterized by high data loss rates, low data rates, and general ______.

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

    Which of the following is NOT a typical link considered in the development of RPL (IPv6 Routing Protocol for Low Power and Lossy Networks)?

    <p>Fiber Optic Cables (C)</p> Signup and view all the answers

    Match the following ICMPv6 messages with their functions in RPL networks:

    <p>DAG Information Object (DIO) = Allows a node to discover an RPL instance, configuration parameters and parents DAG Information Solicitation (DIS) = Allows requests for DIOs from RPL nodes Destination Advertisement Object (DAO) = Propagates destination information upwards along the DODAG</p> Signup and view all the answers

    CoAP (Constrained Application Protocol) is being developed as a web transfer protocol suitable for high-resource environments.

    <p>False (B)</p> Signup and view all the answers

    What is the main function of the Trickle Algorithm in RPL message exchange?

    <p>enabler of RPL message exchange</p> Signup and view all the answers

    What is a key consideration when evaluating the value of data for a business?

    <p>Its potential for future applications and competitive advantages. (C)</p> Signup and view all the answers

    Data processing only involves working with data that is already stored.

    <p>False (B)</p> Signup and view all the answers

    Name two examples of data adjustment techniques used in data processing.

    <p>normalization, timestamp adjustment</p> Signup and view all the answers

    Data _________ refers to residues of data remaining in electronic media even after deletion.

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

    Which of the following technologies are typically needed for processing massive amounts of M2M data?

    <p>massively parallel processing DBs. (D)</p> Signup and view all the answers

    Overwriting is the only technique for dealing with data remanence.

    <p>False (B)</p> Signup and view all the answers

    Besides databases, where else can data remanence be a concern in an M2M system?

    <p>Points of action/nodes/individual devices</p> Signup and view all the answers

    Match the data processing techniques with their description:

    <p>Data Adjustment = Modifying data, such as normalizing data or adjusting timestamps. Data Aggregation = Combining data from multiple sources, often with mathematical functions. Data Transformation = Changing the format or representation of the data, e.g., converting units. Data Forecasting = Predicting missing or invalid data</p> Signup and view all the answers

    At which levels can cross-layer interaction and cooperation be pursued in M2M and IoT technology?

    <p>Both machine-to-machine and machine-to-business levels (B)</p> Signup and view all the answers

    Devices in the lowest layer can only communicate with each other over short-range protocols like ZigBee and Bluetooth.

    <p>False (B)</p> Signup and view all the answers

    What is one type of service that some devices in the lowest layer may host?

    <p>REST services</p> Signup and view all the answers

    Resource-constrained devices may require auxiliary gateways for support, such as mediation of communication and ___________.

    <p>protocol translation</p> Signup and view all the answers

    Match the following terms with their descriptions:

    <p>M2M interaction = Enables devices to interact with each other to fulfill their goals Service-oriented approach = Uses web services or REST to integrate real-world elements Cloud services = Network services providing virtualization and scalability CDN = Used to access generated data from remote locations</p> Signup and view all the answers

    What is a key motivator for using enterprise services in the cloud, as mentioned in the text?

    <p>Minimization of communication overhead with multiple endpoints (A)</p> Signup and view all the answers

    Content Delivery Networks (CDNs) are used to restrict access to generated data from locations that are far away from the M2M infrastructure.

    <p>False (B)</p> Signup and view all the answers

    Besides virtualization and scalability, what are two other characteristics of the cloud that are advantageous for enterprise services?

    <p>Multi-tenancy, performance</p> Signup and view all the answers

    Study Notes

    Negative Impacts of GVC Participation

    • Potential negative impacts encompass poor workplace conditions, compromised occupational safety and health, job insecurity, and the ease of relocating production to lower-cost countries.

    GVC Development Strategies

    • Countries must assess advantages and disadvantages of GVC participation in their development strategies.
    • Promoting GVC participation should prioritize specific segments within value chains.
    • Country trade profiles and industrial capabilities should be prerequisites in determining suitable GVC development strategies.

    Key Aspects for GVC Upgrading

    • GVCs should be integrated into industrial development policies by targeting specific tasks.
    • Proper framework conditions for trade and foreign direct investment (FDI), as well as essential infrastructure should be put in place.
    • Local workforce skills and capabilities' development will support successful implementation of GVC upgrading.

    IoT Architectural Overview

    • IoT architecture can be described as a four- or five-layered system.
    • Four-layered architecture includes media/devices, network, service/application support, and application layers.
    • Five-layered architecture includes perception, network, middleware, application, and business layers.

    Layer Functions

    • Sensor/Perception Layer: Consists of wireless devices, sensors, and RFID tags for collecting raw data like temperature, moisture, etc.
    • Network Layer: Facilitates data routing to the next layer via wired and wireless network protocols.
    • Middleware Layer: Stores information from lower layers, processes it, and makes decisions based on processed information.

    Basic Building Blocks of IoT

    • "Things" of the system that collect data from the environment or output data to surroundings.
    • Sensors: Uniquely identifiable devices with a unique IP address for active real-time data collection. Examples: gas, water quality, moisture sensors.
    • Processors: Process the captured data from sensors and extract valuable information.
    • Gateways: Route processed data for proper usage. Facilitate data transfer for communication. Network connectivity like LAN, WAN, PAN is crucial.
    • Applications: Utilize the data to perform use functions such as home automation, electronic health monitoring.

    Main Design Principles of IoT

    • Research: Understand customer value proposition for an IoT product and corresponding pain points.
    • Value-Centricity: Focus on genuine value of solutions. Address barriers to adoption.
    • Holistic approach: Ensure all layers of the system are well-designed and integrated to achieve successful end-user experience.

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    Related Documents

    IV Unit – M2M and IoT Technology Fundamentals PDF

    Description

    Test your knowledge on the characteristics and capabilities of devices in M2M (Machine to Machine) and IoT (Internet of Things) environments. This quiz covers topics such as power consumption, device categories, and the functionality of System-on-a-Chip solutions. See how well you understand the nuances of these essential technologies!

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