Three major advantages for wireless device users correct answers -Small enough to easily carry
or wear
-Sufficient computing power to perform productive tasks
-Communicate wirelessly with the Internet & other devices.
Disadvantage of wireless devices for business correct answers Workers can capture and transmit
sensitive proprietary information
dematerialization correct answers when the functions of many physical devices are included in
one other physical device (smartphone has alarm, notes etc.)
Microwave correct answers -Advantages •High bandwidth •Relatively Inexpensive
-Disadvantages •Requires an unobstructed line of sight •Susceptible to environmental
interference
Satellite correct answers -Advantages •High bandwidth •Large coverage area
-Disadvantages •Expensive •Requires unobstructed line of sight •Signals experience propagation
delay •Requires the use of encryption for security
Radio correct answers Advantages •High bandwidth •Signals pass through walls •Inexpensive
and easy to install
-Disadvantages •Creates electrical interference problems •Susceptible to snooping
unlessencrypted
GEO advantages and disadvantage correct answers -Advantages •Provides Internet services to
remote areas of Earth
-Disadvantages •Propagation delay •Disrupted by environmental conditions
Middle earth orbit (MEO) correct answers -Orbit: 6,434 miles
-Satellites: 10-12
-Use Global Positioning Systems (GPS)
Geostationary Earth orbit (GEO) correct answers -Orbit: 22,300 miles
-Satellites: 8
-Use TV Signal
Global Positioning System (GPS) correct answers -A wireless system that utilizes satellites to
enable users to determine their position anywhere on Earth
-supported by 24 MEO satellites
Low earth orbit (LEO) correct answers Orbit: 400-700 miles
Satellites: many
Use telephone & internet
,Mobile computing correct answers Real time injection between a mobile device and other
computing environments such as internet or intranet
Mobile commerce correct answers E-commerce transactions conducted in a wireless
environment, especially via the internet
Mobility and broad reach create 5 value-added attributes correct answers -Ubiquity
-Convenience
-Instant connectivity
-Personalization
-Localization of Products and Services
M-commerce drivers correct answers -Widespread availability of mobile devices
-Declining prices
-Bandwidth improvement
The internet of things correct answers -network of physical objects (devices, vehicles, buildings
and other items) embedded with electronics, software, sensors, and network connectivity
-enables these objects to collect and exchange data
-gives access to data on millions of devices
Internet of everything correct answers -extension of the internet of things
-consumer products and devices that connect to the internetand have expanded digital features
-an entire ecosystem where everything is interconnected.
Examples of the internet of things correct answers -The Smart Home
-Healthcare
-Automotive
-Supply Chain Management
-Environmental Monitoring
Ultra-wide band correct answers high-bandwidth wireless technology with transmission speeds
in excess of 100 Mbps
Short range wireless networks correct answers Bluetooth, ultra-wide band, near-field
communication
Near-field communications (NFC) correct answers -the smallest range of any short-range
wireless network
-is designed to be embedded in mobile devices (cell phones & credit cards)
Medium range wireless networks correct answers Wireless local area networks (WLAN)
-wireless fidelity (WI-FI)
-MiFi
-Li-fi
-Wi-fi direct
, -Super wi-fi
Wireless Fidelity (Wi-Fi) correct answers a medium-range WLAN, which is a wired LAN but
without the cables
Mifi correct answers small, portable wireless device that provides users with a permanent Wi-Fi
hot spot wherever they go
Wi-if direct correct answers -enables peer-to-peer communications, so devices can connect
directly
-enables users to transfer content among devices without having to rely on a wireless antenna
Light fidelity (Li-Fi) correct answers -technology for wireless communication among devices
using light to transmit data and position
-can transmit data at high speeds over the visible light spectrum, ultraviolet, & infrared radiation
Super wi-fi correct answers -wireless network proposal that creates long-distance wireless
Internet connections
-Coined by US FCC
-uses the lower-frequency "white spaces" between broadcast TV channels. -signal travels farther
and penetrate walls better than normal Wi-Fi frequencies
Wide area wireless networks correct answers -Cellular radio
-Wireless broadband, or WiMAX
Cellular phones correct answers provide two-way radio communications over a cellular network
of base stations with seamless handoffs
Worldwide Interoperability for Microwave Access (WiMAX) correct answers -has a wireless
access range of up to 31 miles, -has a data transfer rate of up to 75 Mbps
-a secure system, offers features such as voice and video
-provide long-distance broadband wireless access to rural areas and other locations that are not
currently being served
Location based commerce (L-commerce) correct answers Location-based mobile commerce
Other names for Internet of everything correct answers -Internet of Everything
-Internet of Anything,
-Industrial Internet
-machine-to-machine (M2M) communication
Radio-frequency identification (RFID) correct answers -allows manufacturers to attach tags with
antennas and computer chips on goods and then track their movement using radio signals
-developed to replace bar codes
Universal Product code (UPC) correct answers -bar codes