IFMG Ch 8

A wireless system that offers uninterrupted, near CD-quality music that is beamed to your radio from satellites.

satellite radio (or digital radio)

A wireless transmission system that uses satellites for broadcast communications.

satellite transmission

A(n) _____ is a new class of digital communication device that provides an organizer, cell phone, digital camera, access to e-mail, Internet access, and short message service.

smart phone

The wireless transmission and receipt of data gathered from remote sensors.

telemetry

Which of the following is not a mobile application in financial services?

transaction processing systems

As we have progressed through the generations of cellular phones, their transmissions have evolved from analog to digital; their transmission speeds (bandwidth) have increased; and they transmit voice and data.

true

Electronic commerce transactions conducted in a wireless environment, especially via the Internet, is called mobile commerce.

true

Invisible "everywhere" computing embedded in objects is called pervasive computing. (True/False)

true

RFID tags and QR (quick response) codes designed to replace bar codes.

true

The wireless transmission and receipt of data gathered from remote sensors is called telemetry.

true

(see pervasive computing)

ubiquitous computing

A high-bandwidth wireless technology with transmission speeds in excess of 100 Mbps that can be used for applications such as streaming multimedia from, say, a personal computer to a television.

ultra-wideband (UWB)

A Web site with an audio interface.

voice portal

___ enables peer-to-peer wireless communications without the need to go through a central wireless access point.

wifi direct

Telecommunications in which electromagnetic waves carry the signal between communicating devices.

wireless

911 emergency calls made with wireless devices.

wireless 911

A transmitter with an antenna that connects a mobile device to a wired local area network is called a(n):

wireless access point

An antenna connecting a mobile device to a wired local area network.

wireless access point

A computer network in a limited geographical area that uses wireless transmission for communication.

wireless local area network (WLAN)

Networks of inter-connected, battery-powered, wireless sensors placed in the physical environment.

wireless sensor networks (WSNs)

With regard to mobile computing, _____ mean(s) that it is easy and fast to access the Web and other mobile devices. Ubiquity Convenience Instant connectivity

Both of the following are correct: convenience and instant connectivity

This type of satellite has the largest footprint:

GEO

With which type of satellite is there a propagation delay?

GEO

A wireless system that uses satellites to enable users to determine their position anywhere on earth.

Global Positioning System (GPS)

Which type of satellite has the shortest orbital life?

LEO

Which type of satellite requires the highest number of satellites to cover the earth?

LEO

GPS are supported by ___ satellites

MEO

This type of satellite is used for the global positioning system:

MEO

The major types of wireless media are:

Microwave, satellite, radio, and infrared.

___ is a portable wireless device that provides users with a WiFi hotspot wherever they go.

Mifi

All of the following statements regarding QR codes are true except:

QR codes can only store information that is comprised of numbers or text.

Which of the following statements about wireless devices is not true?

They have strong security feature that make them impossible to hack.

Which of the following is the most appropriate wireless technology for real-time location of caregivers and mobile equipment in health-care environments?

Ultra wideband

Which of the following statements about Wi-Fi is not correct?

Wi-Fi is expensive to set up.

_____ is the standard that enables wireless devices to access Web-based information and services.

Wireless Application Protocol

A set of standards for wireless local area networks based on the IEEE 802.11 standard.

Wireless Fidelity (Wi-Fi)

_____ collect data from many points over an extended space.

Wireless sensor networks

Mobile applications in financial services include which of the following? mobile banking wireless electronic payment systems micropayments brokerage services

all of the above

Chip technology that enables short-range connection (data and voice) between wireless devices.

bluetooth

The short-range wireless network best suited for eliminating the wires connecting keyboard, mouse, monitor, and computer in your office is:

bluetooth

Phones that provide two-way radio communications over a cellular network of base stations with seamless handoffs.

cellular telephones (cell phones)

Efforts by unauthorized users to access data traveling over a wireless network is called:

eavesdropping

The major problem with RFID has been:

expense

The terms, wireless and mobile, mean the same thing. (True/False)

false

Wireless broadband (WiMAX) is most useful for bringing Internet access to individuals in large cities.

false

A small geographical perimeter within which a wireless access point provides service to a number of users.

hotspot

A type of wireless transmission that uses red light not commonly visible to human eyes.

infrared

Mobile commerce transactions targeted to individuals in specific locations, at specific times.

location-based commerce (l-commerce)

Wi-Fi networks are typically classified as _______ wireless networks

medium-range

Networks composed of multiple Wi-Fi access points that create a wide area network that can be quite large.

mesh networks

_____ use multiple Wi-Fi access points to create a wide area network.

mesh networks

Using your cell phone to purchase a Coke from a vending machine is an example of:

micropayment

Which of the following technologies is wireless but not mobile?

microwave towers

A wireless system that uses microwaves for high-volume, long-distance, point-to-point communication.

microwave transmission

Electronic commerce transactions that are conducted with a mobile device.

mobile commerce or (m-commerce)

A real-time connection between a mobile device and other computing environments, such as the Internet or an intranet.

mobile computing

A portal that aggregates and provides content and services for mobile users.

mobile portal

A technology that allows users to make purchases with a single click from their mobile devices.

mobile wallet (m-wallet)

The two major characteristics that differentiate mobile computing from other forms of computing are _______ and _________.

mobility, broad reach

The short-range wireless network best suited for touchless credit card transactions is:

near-field communications

The smallest of the short-range wireless networks that is designed to be embedded in mobile devices such as cell phones and credit cards.

near-field communications (NFC)

A computer network used for communication among computer devices close to one person.

personal area network

A computer environment where virtually every object has processing power with wireless or wired connections to a global network.

pervasive computing (or ubiquitous computing)

Any delay in communications from signal transmission time through a physical medium.

propagation delay

Uses radio-wave frequencies to send data directly between transmitters and receivers.

radio tranmission

The technology that uses radio waves to identify individual items is:

radio-frequency identification

A wireless technology that allows manufacturers to attach tags with antennas and computer chips on goods and then track their movement through radio signals.

radio-frequency identification (RFID) technology

A(n) _____ allows unauthorized entry into a wireless network.

rogue access point

An evil twin attack is a type of:

rouge access point