Management Information Systems Chapter 8 Quiz
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Questions and Answers

What is one major disadvantage of wireless devices for businesses?

  • They can capture and transmit sensitive proprietary information. (correct)
  • They cannot connect to the Internet.
  • They require constant software updates.
  • They have limited battery life.

    • Which wireless transmission media requires an unobstructed line of sight for optimal performance?

  • Bluetooth
  • Microwave (correct)
  • Wi-Fi
  • Radio

    • What is a major characteristic of Geostationary Earth Orbit (GEO) satellites?

  • They have negligible transmission delay.
  • They move rapidly relative to the Earth.
  • They are the cheapest to build and maintain.
  • They can provide global coverage with few satellites. (correct)

    • What is the primary use of GPS technology?

    <p>Determining position anywhere on Earth</p> Signup and view all the answers

    Which type of wireless network is characterized by Bluetooth technology?

    <p>Short-range wireless networks</p> Signup and view all the answers

    What is a key advantage of medium-earth orbit (MEO) satellites compared to GEO satellites?

    <p>They have negligible transmission delays.</p> Signup and view all the answers

    Which characteristic is NOT a feature of radio transmission media?

    <p>Requires precise alignment for transmission</p> Signup and view all the answers

    Which of the following is a disadvantage of satellite communication?

    <p>Can be affected by environmental interference</p> Signup and view all the answers

    How many satellites are typically used to determine a three-dimensional location using GPS?

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

    What technology allows mobile devices to charge without connecting with a cable?

    <p>Wireless charging</p> Signup and view all the answers

    Which one of the following wireless technologies has the highest bandwidth?

    <p>Bluetooth 4.0</p> Signup and view all the answers

    Which of the following best describes the use of low-earth orbit (LEO) satellites?

    <p>They move rapidly relative to the Earth.</p> Signup and view all the answers

    What is a primary drawback of using radio transmission?

    <p>High susceptibility to snooping unless encrypted</p> Signup and view all the answers

    What cellular capability allows users to send short messages up to 160 characters?

    <p>Short message service (SMS)</p> Signup and view all the answers

    Which of the following describes the primary use of Ultra-wideband (UWB)?

    <p>Detecting individuals behind barriers in emergency situations</p> Signup and view all the answers

    What is the main function of Near-Field Communications (NFC)?

    <p>Enabling communication between devices within close proximity</p> Signup and view all the answers

    What technology enables devices to connect directly in Wi-Fi networks?

    <p>Wi-Fi Direct</p> Signup and view all the answers

    What key characteristic allows mobile computing to provide services almost anywhere?

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

    Which characteristic distinguishes 5G cellular technology from earlier generations?

    <p>Faster data transfer rates</p> Signup and view all the answers

    Which application is an example of location-based commerce (L-commerce)?

    <p>Using a ride-sharing app that relies on real-time locations</p> Signup and view all the answers

    What does WiMAX primarily provide compared to traditional Wi-Fi?

    <p>Greater range and security</p> Signup and view all the answers

    How does wearable technology benefit the healthcare industry?

    <p>By continuously monitoring patient conditions</p> Signup and view all the answers

    What encompasses the concept of the Internet of Things (IoT)?

    <p>Connecting objects with processing power to networks</p> Signup and view all the answers

    What is the main advantage of mobile commerce (m-commerce) over traditional e-commerce?

    <p>Ability to make purchases on-the-go</p> Signup and view all the answers

    What is one of the main drivers of m-commerce growth?

    <p>Rising mobile device accessibility</p> Signup and view all the answers

    Which aspect does NOT contribute to the value-added attributes of mobile computing?

    <p>Disconnection from services</p> Signup and view all the answers

    What does Super Wi-Fi enable for users?

    <p>Long-distance internet connections</p> Signup and view all the answers

    What role do antennas play in cellular radio technology?

    <p>Facilitating communication between cellphones</p> Signup and view all the answers

    Study Notes

    Course Information

    • Course title: Management Information Systems
    • Course code: ADM 2372
    • Instructor: Mayur Joshi, PhD
    • Instructor email: [email protected]

    Week 12: Wireless, Mobile Computing & Mobile Commerce (Chapter 8)

    • Topic: Wireless, Mobile Computing & Mobile Commerce (Chapter 8)

    Agenda

    • Topic 1: Wireless Technologies
    • Topic 2: Wireless Computer Networks and Internet Access
    • Topic 3: Mobile Computing and Mobile Commerce
    • Topic 4: The Internet of Things (IoT)

    8.1 Wireless Technologies

    • Wireless Devices
      • Smartphones
    • Wireless Transmission Media
      • Microwave
      • Satellite
      • Radio

    Wireless Devices

    • Advantages for users:
      • Small enough for easy carrying or wearing
      • Sufficient computing power for productive tasks
      • Wireless communication with the internet and other devices
    • Disadvantage for businesses:
      • Workers can capture and transmit sensitive proprietary information

    Modern Smartphone Capabilities

    • Cellular telephony
    • Bluetooth
    • Wi-Fi
    • Digital camera for images and video
    • Mobile (digital) wallets
    • Wireless charging/fast charging
    • Global positioning system (GPS)
    • Organizer
    • Scheduler
    • Address book
    • Calculator
    • E-mail
    • Biometric applications
    • Cloud storage
    • Short message service (SMS)
    • Instant messaging
    • Text messaging
    • MP3 music player
    • Video player
    • Internet access with full-function browser
    • QWERTY keyboard

    Wireless Transmission Media

    • Wireless media (aka broadcast media):
      • Transmit signals without wires
    • Major types of wireless media channels
      • Microwave: uses electromagnetic waves
      • Satellite: requires communication satellites
        • GEO (geostationary), MEO (medium-earth-orbit), or LEO (low-earth-orbit)
        • Satellites facilitate GIS (Geographic Information Systems) and Internet access, sometimes the only way in remote areas.
      • Radio: uses radio waves

    Wireless Transmission Media (Advantages and Disadvantages)

    Channel Advantages Disadvantages
    Microwave High bandwidth, relatively inexpensive Must have unobstructed line of sight, susceptible to environmental interference.
    Satellite High bandwidth, large coverage area Expensive, must have unobstructed line of sight, signals experience propagation delay, must use encryption for security.
    Radio High bandwidth, signals pass through walls, inexpensive and easy to install Creates electrical interference problems, susceptible to snooping unless encrypted.

    Types of Satellites

    • Geostationary Earth Orbit (GEO)
    • Middle Earth Orbit (MEO)
    • Low Earth Orbit (LEO)

    Wireless Transmission Media (Types of Satellites)

    Type Characteristics Orbit #s Use
    GEO Stationary relative to a point on Earth, few needed for global coverage, long delay, expensive to build and launch. 22,300 miles 8 TV signal
    MEO Moves relative to a point on Earth, moderate number needed for coverage, medium-powered transmitters. 6,434 miles 10-12 GPS
    LEO Moves rapidly relative to a point on Earth, large number needed for coverage, low-powered transmitters, minimal delay, least expensive to build, shortest orbital life 400-700 miles Many Telephone

    Global Positioning Systems (GPS)

    • Wireless system using satellites to determine user location anywhere on Earth.
    • Supported by 24 MEO satellites worldwide.
    • Four International GPS systems (United States's GPS, Russia's GLONASS, China's BeiDou, and the European Union's, Galileo).
    • Two regional GPS systems (India's NAVIC (7 satellites) and Japan's QZSS (4 satellites)).
    • Uses of GPS: Navigation, mapping, surveying, 911 location.
    • Satellite position is broadcast continuously along with time signals.
    • Three or four satellites can locate a receiving station within a few meters.
    • Software converts latitude/longitude to electronic maps.

    Wireless Computer Networks

    • Short-Range Wireless Networks: Bluetooth, Ultra-wideband (UWB), Near-Field Communications (NFC).
    • Medium-Range Wireless Networks: Wi-Fi, Wi-Fi Direct, MiFi, Super Wi-Fi.
    • Wide-Area Wireless Networks: Cellular radio, Wireless broadband (WiMAX).

    Mobile Computing

    • Real-time connection between mobile devices and other computing environments (e.g., internet, intranet).
    • Two major characteristics: Mobility and Broad reach.
    • Mobility and broad reach create 5 value-added attributes: Ubiquity, Convenience, Instant connectivity, Personalization, Localization of products/services.

    Mobile Commerce

    • Electronic commerce (EC) transactions in a wireless environment (especially via internet).
    • M-commerce: purchasing goods/services via wireless internet-enabled devices.
    • L-commerce (location-based commerce): transactions targeted to specific locations (e.g., Uber).

    Mobile Commerce Applications

    • Financial services
    • Location-based apps and services
    • Mobile advertising
    • Intrabusiness apps
    • Accessing information
    • Telemetry apps

    The Internet of Things (IoT)

    • Every object has processing power and connections to a global network.
    • Internet of Everything, Internet of Anything, Machine-to-Machine (M2M) Communication, Radio-Frequency Identification (RFID).
    • Any object (natural or manmade) has a unique IP address.
    • Examples in healthcare, smart homes, smart stores, smart cities, automotive, smart factories, digital twins, supply chain management, energy management, transportation, agriculture, and hospitality.

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    Related Documents

    Week 12 Wireless & Mobile Computing PDF

    Description

    Test your knowledge on the concepts of Wireless and Mobile Computing as covered in Chapter 8 of the Management Information Systems course. This quiz includes topics such as wireless technologies, mobile commerce, and the Internet of Things (IoT). Assess your understanding of wireless devices and their implications for users and businesses.

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