Information Systems Chapter 8

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Questions and Answers

What is the primary distinction between wireless and mobile technologies?

  • Wireless requires a physical connection, while mobile does not.
  • Wireless networks are not connected to the Internet, while mobile networks are.
  • Wireless does not use any form of connection, while mobile relies on wires.
  • Wireless does not require wires, whereas mobile involves changing locations. (correct)

Which of the following is a type of wireless transmission media?

  • Optical Fiber
  • Ethernet
  • Satellite (correct)
  • USB

How does mobile commerce primarily impact businesses?

  • By eliminating the need for any online presence.
  • By facilitating e-commerce transactions conducted via mobile devices. (correct)
  • By restricting transactions to in-person sales only.
  • By removing the necessity for traditional marketing strategies.

What does the Internet of Things (IoT) enable organizations to do?

<p>Integrate processing power into virtually all objects with network connections. (A)</p> Signup and view all the answers

Which statement correctly describes mobile computing?

<p>It involves real-time wireless connections to other computing environments. (B)</p> Signup and view all the answers

Which type of wireless network would be characterized as having a range sufficient for larger areas?

<p>Long-range networks, such as cellular networks. (D)</p> Signup and view all the answers

Which of the following devices is considered a wireless device?

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

What is a significant challenge associated with wireless technologies?

<p>The potential for security vulnerabilities. (C)</p> Signup and view all the answers

What is a major advantage of wireless devices for users?

<p>They can communicate wirelessly with the Internet. (C)</p> Signup and view all the answers

Which of the following is a disadvantage of wireless devices for businesses?

<p>They can capture sensitive information. (D)</p> Signup and view all the answers

What is one major type of wireless transmission media?

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

What is a disadvantage of microwave transmission?

<p>Must have unobstructed line of sight. (B)</p> Signup and view all the answers

Which type of telecommunications satellite offers a large coverage area?

<p>Geostationary Earth Orbit (GEO) (A)</p> Signup and view all the answers

What is a common disadvantage of radio transmission?

<p>Creates electrical interference problems. (D)</p> Signup and view all the answers

Which of the following correctly describes an advantage of satellite media?

<p>They have high bandwidth. (D)</p> Signup and view all the answers

What concept does the dematerialization of smartphones refer to?

<p>Replacing multiple devices with one. (A)</p> Signup and view all the answers

What is a primary benefit of Internet over Satellite (IoS)?

<p>It allows Internet access in areas where cables are too expensive. (D)</p> Signup and view all the answers

Which technology is primarily used for short-range wireless communication between devices?

<p>Personal area network (D)</p> Signup and view all the answers

What is one of the functions performed by commercial imaging from satellites?

<p>Tracking moving objects like ships and planes. (A)</p> Signup and view all the answers

How does Bluetooth 4.0 improve upon Bluetooth 1.0?

<p>It allows for higher transmission speeds. (C)</p> Signup and view all the answers

Which short-range wireless technology is utilized in payment systems via mobile devices?

<p>Near-field communications (NFC) (A)</p> Signup and view all the answers

What distinguishes ultra-wideband (UWB) technology from other wireless networks?

<p>It provides very high bandwidth and speed. (B)</p> Signup and view all the answers

What form of wireless network connects computers to peripheral equipment?

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

Google Loon uses what method to provide Internet access?

<p>Aerial balloons (D)</p> Signup and view all the answers

What is a key characteristic of Wi-Fi?

<p>It connects devices through a wireless access point. (D)</p> Signup and view all the answers

Which of the following is described as a portable device that provides a Wi-Fi hotspot?

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

What is the maximum typical range of a MiFi device?

<p>10 meters (C)</p> Signup and view all the answers

Which wireless technology uses peer-to-peer communications?

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

What feature distinguishes WiMAX from other wireless technologies?

<p>It supports a wireless range of up to 50 kilometers. (D)</p> Signup and view all the answers

Which of the following accurately describes the primary function of a wireless access point?

<p>To interface wired connections with Wi-Fi enabled devices. (B)</p> Signup and view all the answers

Which generation of cellular technology includes LTE and XLTE?

<p>4G (A)</p> Signup and view all the answers

What is the maximum data transfer rate that WiMAX can achieve?

<p>75 Mbps (A)</p> Signup and view all the answers

What primary benefit does RFID-labelled inventory provide for online shopping?

<p>It allows for real-time tracking of product availability. (C)</p> Signup and view all the answers

Which of the following is NOT an example of the Internet of Things (IoT)?

<p>Traditional farming methods (C)</p> Signup and view all the answers

In what way can RFID technology help to avoid stockouts in retail?

<p>By providing alerts for low inventory levels. (D)</p> Signup and view all the answers

Which sector is likely to benefit from precision agriculture enabled by IoT?

<p>Agriculture (D)</p> Signup and view all the answers

How does environmental monitoring utilize IoT technologies?

<p>By tracking and analyzing environmental conditions remotely. (D)</p> Signup and view all the answers

Which of the following is NOT one of the major threats to wireless networks?

<p>Spam attack (C)</p> Signup and view all the answers

What are the two major characteristics of mobile computing?

<p>Mobility and broad reach (D)</p> Signup and view all the answers

Which of the following is NOT drivers of mobile commerce?

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

Which of the following is an attribute created by mobility and broad reach in mobile computing?

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

What is the alternative name for mobile commerce?

<p>M-commerce (C)</p> Signup and view all the answers

Which application is NOT typically associated with mobile commerce?

<p>Voice recognition software (D)</p> Signup and view all the answers

Which technology is associated with the Internet of Things (IoT)?

<p>Radio-Frequency Identification (RFID) (C)</p> Signup and view all the answers

Which of the following defines a primary function of RFID tags compared to bar codes?

<p>RFID tags can store more information (A)</p> Signup and view all the answers

Flashcards

Wireless technologies

Technologies that allow communication without physical wires.

Mobile computing

Real-time, wireless connection between a mobile device and a network (like the internet).

Mobile commerce (m-commerce)

E-commerce transactions done with a mobile device.

Internet of Things (IoT)

Every object has processing power and a connection to a network; often wireless.

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Wireless transmission media

Methods for transmitting data wirelessly.

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Microwave

A way to transmit wireless signals.

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Satellite

Used for wireless communication and can reach very far distances.

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Radio

Another method for wireless transmission, using radio waves.

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Wireless Devices Advantages (Users)

Wireless devices are small, portable, and powerful enough for productive tasks, communicating wirelessly.

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Wireless Devices Disadvantage (Businesses)

Workers using wireless devices can transmit sensitive data.

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Dematerialization

Combining functions of multiple devices into one physical device.

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Microwave Transmission

A type of wireless transmission using high bandwidth and relatively low cost.

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Satellite Transmission

A type of wireless transmission with high bandwidth covering wide areas but with delay and cost.

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Radio Transmission

A type of wireless transmission with high bandwidth, inexpensive, and easy installation.

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Satellite Orbits (Types)

Geostationary, Medium Earth, and Low Earth Orbit satellites for varying communication coverage.

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Internet over Satellite (IoS)

A method for accessing the internet without cables, often used in areas without cable infrastructure.

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Commercial satellite imaging

Utilizing satellite images for tracking objects like ships/planes, examining land features (forests, farms), or monitoring urban development.

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Satellite radio

Digital radio transmission via satellite.

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Google Loon

A network using balloons to provide aerial wireless internet access.

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Personal Area Network (PAN)

A small wireless network connecting personal devices.

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Bluetooth

A wireless technology allowing communication between devices within a short range.

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Ultra-wideband (UWB)

High-bandwidth wireless technology with high transmission speeds.

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Near-Field Communication (NFC)

A short-range wireless technology embedded in devices like cell phones and credit cards.

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Wi-Fi

A medium-range wireless network that enables devices to connect to the internet without cables. It uses a wireless access point to connect to a wired network or satellite connection.

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Wireless access point

A device with an antenna that transmits Wi-Fi signals, connecting wireless devices to a network.

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Hotspot

A geographical area covered by a wireless access point, allowing devices to connect to the internet.

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Wi-Fi Direct

A technology that allows devices to connect directly with each other without a central access point, using peer-to-peer communication.

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MiFi

A small, portable device that creates a personal Wi-Fi hotspot, providing internet access for multiple devices.

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Cellular Network

A wireless network that uses cell towers to provide communication services over a wide area. Different generations like 2G, 3G, 4G, and 5G offer varying speeds and features.

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WiMAX

A wireless broadband technology that provides high-speed internet access over long distances, offering a secure system for voice and video transmission.

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What is the purpose of a cellular network?

A cellular network allows wireless communication over a wide area by using cell towers to connect devices. It is designed for voice calls, data transfer, and other services over long distances.

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RFID tag

A small, electronic device attached to an item that stores information about it, such as its ID and location, and can be read wirelessly by an RFID reader.

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RFID reader

A device that emits radio waves to communicate with an RFID tag and retrieve the information stored on it.

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Stockouts

When a store runs out of a particular item that customers want to buy.

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Digital Twins

Virtual representations of physical objects that can be used to simulate and analyze their behavior.

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Precision Agriculture

Using technology to optimize farming practices for better yields and resource management.

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Rogue access point

An unauthorized access point that allows someone to connect to a wireless network without permission.

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Evil twin attack

A fake Wi-Fi access point that tricks devices into connecting to it, allowing attackers to steal data.

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War driving

Using a mobile device to search for available Wi-Fi networks, often while driving or walking.

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Eavesdropping

Unauthorized listening in on wireless network traffic to intercept data.

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RF jamming

Intentionally or unintentionally interfering with wireless network transmissions.

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Ubiquity

The ability of mobile devices to be used in many different locations and situations.

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Localization

The ability of mobile devices to provide location-specific information and services.

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Study Notes

Introduction to Information Systems - Chapter 8

  • Chapter title: Wireless, Mobile Computing, and Mobile Commerce
  • Learning Objectives:
    • Identify advantages and disadvantages of wireless transmission media types
    • Understand how businesses use short-range, medium-range, and long-range wireless networks.
    • Provide examples of how five major m-commerce applications benefit businesses.
    • Describe the Internet of Things, along with examples of its use by organizations.
  • Chapter Outline:
    • Wireless Technologies
    • Wireless Computer Networks and Internet Access
    • Mobile Computing and Mobile Commerce
    • The Internet of Things

8.1 Wireless Technologies

  • Terminology: wireless, mobile computing, mobile commerce, Internet of Things (IoT)
  • Wireless Devices:
    • Smartphones
  • Wireless Transmission Media:
    • Microwave
    • Satellite
    • Radio
  • Wireless Security

Wireless Technologies

  • Wireless: without wires

  • Mobile: changes location over time

  • Wireless networks can be both mobile (e.g., MiFi) and fixed (e.g., microwave towers).

  • Mobile computing: real-time wireless connection between mobile devices and environments (e.g., internet, intranet).

  • Mobile commerce (m-commerce): e-commerce transactions conducted using mobile devices.

  • Internet of Things (IoT): ubiquitous computing where virtually every object has processing power and wireless or wired connections to a global network.

Wireless Devices

  • Advantages for users:
    • Small enough to carry
    • Sufficient computing power
    • Wireless communication
  • Disadvantage for businesses:
    • Workers capturing and transmitting confidential/proprietary information

Wireless Transmission Media

  • Wireless media (broadcast media): transmit signals without wires.

  • Major types:

    • Microwave
    • Satellite
    • Radio (long-range)

  • Data is transmitted via electromagnetic waves

  • Table 8.1: Advantages and disadvantages of wireless media channels (Microwave, Satellite, Radio)

Three Basic Telecommunications Satellites

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

TABLE 8.2: Satellite Characteristics

  • Provides characteristics and data of GEO, MEO, and LEO satellites.
  • Includes orbit, number of satellites, use, and characteristics for each type such as transmission delay, number needed for global coverage, cost, and lifespan.

Global Positioning Systems (GPS)

  • Wireless system using satellites to determine location.
  • Supported by MEO satellites
  • Uses: Navigation, mapping, surveying, emergency services.

Additional Satellite Applications

  • Internet over Satellite (IOS): Access to the internet without cable in remote areas
  • Commercial imagery: Satellite imagery used for tracking moving objects (ships, planes), and visualizing objects on Earth (roads, buildings, forests, farms, weather).

Radio and Other Internet Access Methods

  • Radio transmission: Connect computers to peripherals and LANs, including ground-based direct connections or satellite radio.
  • Google Loon: Balloons creating aerial wireless networks for internet access

8.2 Wireless Computer Networks and Internet Access

  • Short-Range Wireless Networks (e.g., Bluetooth, Ultra-wideband (UWB), Near-field communications (NFC))
  • Medium-Range Wireless Networks (e.g., Wi-Fi, Wi-Fi Direct, MiFi (My Wi-Fi), Li-Fi)
  • Wide-Area Wireless Networks (e.g., Cellular radio, Wireless broadband (WiMAX))

8.3 Mobile Computing and Mobile Commerce

  • Mobile Computing:
    • Real-time connection between a mobile device and other computing environments (internet or intranet).
  • Mobile Commerce (m-commerce):
    • Electronic commerce (EC) transactions in a wireless environment, mainly via the internet.

Mobile Computing

  • Two major characteristics:
    • Mobility
    • Broad reach
  • Characteristics create value-added attributes:
    • Ubiquity
    • Convenience
    • Instant connectivity
    • Customization
    • Localization

Mobile Commerce

  • Also known as m-commerce
  • Drivers:
    • Widespread availability of mobile devices
    • Declining prices of devices
    • Bandwidth improvement

Mobile Commerce Applications

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

8.4 The Internet of Things (IoT)

  • Also known as the Internet of Everything (IoE) or Machine-to-Machine (M2M) communication
  • Radio Frequency Identification (RFID): active or passive technology for product identification.
  • RFID versus barcodes (UPC)

Examples of the Internet of Things in Use

  • Smart homes
  • Digital twins
  • Health care
  • Automotive industry
  • Supply chain management
  • Environmental monitoring
  • Infrastructure management
  • Energy management
  • Agriculture
  • Transportation
  • Farming

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