Deck 10: Wireless, Mobile Computing, and Mobile Commerce

Question 1

Which type of satellite has the shortest orbital life?

A) Low-earth-orbit
B) Medium-earth-orbit
C) Geostationary-earth-orbit
D) Polar-earth-orbit

Answer 1

A

Question 2

Wi-Fi is a wireless standard that enables temporary, short-range connections between mobile devices.

Answer 2

False

Question 3

Mobile applications in financial services include which of the following?

A) Brokerage services
B) Wireless electronic payment systems
C) Micropayments
D) All of these options

Answer 3

D

Question 4

Rogue access points can be set up by employees.

Question 5

A _____ 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.

A) cell phone
B) pager
C) personal digital assistant
D) smartphone

Question 6

Eavesdropping refers to:

A) locating WANs while driving or walking and using a wireless-enabled computer to intrude into the network.
B) unauthorized users accessing data that are traveling over wireless networks.
C) a person or a device that intentionally or unintentionally interferes with wireless network transmissions.
D) making private wireless communications available to the public.

Question 7

Which of the following statements about Google's Project Fi is NOT true?

A) It utilizes approximately 1 million free, open Wi-Fi hotspots that Google has verified as fast and reliable.
B) It is a prepaid phone service that provides users with data services across all existing mobile networks.
C) It encrypts data when a customer uses public Wi-Fi.
D) It allows customers to change the size of their data plans whenever they want.

Question 8

Mobile commerce refers to a real-time, wireless connection between a mobile device and other computing environments.

Question 9

With which type of satellite is there a propagation delay?

A) Low-earth-orbit
B) Medium-earth-orbit
C) Geostationary-earth-orbit
D) Polar-earth-orbit

Question 10

Which of the following is a disadvantage of using a microwave transmission system?

A) Its signals experience propagation delay.
B) It is susceptible to environmental interference.
C) It creates electrical interference problems.
D) It requires the use of encryption for security.

Question 11

Which of the following best describes the Internet of Things?

A) It refers to a real-time, wireless connection between a mobile device and other computing environments, such as an intranet.
B) It refers to e-commerce transactions that are conducted with a mobile device.
C) It means that virtually every device has processing power with wireless or wired connections to a global network.
D) None of these options

Question 12

The major security threats to wireless communications include:

A) rogue access points, telemetry, and WSNs.
B) rogue access points, war driving, and eavesdropping.
C) rogue access points, telemetry, and eavesdropping.
D) rogue access points, WSNs, and RF jamming.

Question 13

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

A) lack of encryption
B) rogue access point
C) open node
D) illegal server

Question 14

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

A) Wi-Fi
B) Microwave
C) Ultra-wideband
D) Infrared

Question 15

A transmitter with an antenna that connects a mobile device to a wired local area network is called a _____.

A) transceiver
B) hotspot
C) cellular radio
D) wireless access point

Question 16

Microwave transmissions are broadcast, whereas satellite transmissions are point-to-point.

Question 17

Which type of satellite requires the highest number of satellites for global coverage?

A) Low-earth-orbit
B) Medium-earth-orbit
C) Geostationary-earth-orbit
D) Polar-earth-orbit

Question 18

Which of the following characteristics distinguishes mobile computing from other forms of computing?

A) Mobile computing offers greater security.
B) Connectivity is slower but more reliable than in other forms of computing.
C) Mobile computing is limited to relatively short SMS messages.
D) Customized information can be sent to individuals as an SMS.

Question 19

Mobile computing has two major characteristics that differentiate it from other forms of computing. What are these two characteristics?

A) Mobility and broad reach
B) Mobility and lack of expense
C) Security and broad reach
D) Security and mobility

Question 20

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

A) mobile banking
B) wireless wallet
C) micropayment
D) money transfer

Question 21

Wireless payment systems offer people instant access to banking functions like transferring money, but these systems are not secure enough for widespread usage because the transmissions are not encrypted.

Question 22

The rapid development of m-commerce is driven by:

A) widespread familiarity with communication via cell phones.
B) the decreasing costs of wireless devices.
C) the availability of greater bandwidth.
D) all of these options.

Question 23

Peer-to-peer parking apps such as MonkeyParking have bought parking spaces throughout major cities to solve parking problems in these cities.

Question 24

All of the major carriers in the United States currently offer seamless offloading.

Question 25

The major problem with RFID has been _____.

A) expense
B) bandwidth
C) location
D) RFID readers

Question 26

Which of the following statements about smart meters is NOT True?

A) They capture how much energy is being consumed at each site.
B) They have the intelligence to know which types of home devices are consuming energy.
C) They broadcast consumption data over radio frequency to a PGE neighborhood area network.
D) They only collect raw usage data.

Question 27

A wireless sensor:

A) uses satellites to enable users to determine their position anywhere on earth.
B) uses a type of transmission that uses red light that is not commonly visible to human eyes.
C) is an autonomous device that monitors its own condition, as well as physical and environmental conditions around it.
D) is a type of chip technology that enables short-range data and voice connections between wireless devices.

Question 28

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

A) Transaction processing systems
B) Wireless wallets
C) Wireless payment systems
D) Micropayments