York University - ADMS 2511

Chapter 7: Wireless Technologies and the Modern Organization

True/False

1)Wireless computing does not really affect productivity.

2. Wireless is a term used to describe telecommunications in which electromagnetic waves carry the signal between communicating devices.

3. Wireless technologies are not changing the ways that organizations are doing business, but they are enabling organizations to do business faster.

4. Short message service allows for the sending of short text messages on digital cell phones.

5. Microwave transmissions are affected by environmental conditions such as storms.

6. The higher the orbit of a satellite, the larger its footprint.

7. The global positioning system is supported by GEO satellites.

8. Radio transmissions are highly secure.

9. Bluetooth is a wireless standard that enables temporary, short-range connection between mobile devices.

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

11. Wi-Fi provides excellent security.

12. Personalization means that a mobile device can provide real-time communication, independent of the user’s location.

13. Micropayment technology has a limited number of possible applications.

14. Mobile wallets enable users to make purchases with a single click from a mobile device.

15. Telemetry is the science that measures physical remoteness by means of wireless transmissions from a remote source to a receiving station.

 Response:

16. Pervasive computing and virtual reality are just different names for the same thing.

17. In a mesh network, the motes must transmit their data to a central computer.

18. Mesh networks are reliable, efficient, and fault tolerant.

19. Rogue access points can be set up by employees.

20. War driving is the act of locating wireless networks while driving around a certain area.

Multiple Choice

1. Which of the following is not a strategy that Digicel uses in developing countries to start and grow its mobile telephone business?
   1. spend large amounts of money on the network
   2. have clean stores
   3. have polite, knowledgeable staff in the store
   4. make contributions to the election campaigns of politicians
   5. offer large discounts for mobile service

2.          means that virtually every object has processing power with wind or wireless connections to a network.
   1. Wireless computing
   2. Mobile computing
   3. Pervasive computing
   4. Fixed computing
   5. Continuous computing

3. Individuals are finding it convenient and productive to use wireless devices for which of the following reasons?
   1. To make use of time that was formerly wasted
   2. To become more efficient
   3. Work locations are more flexible
   4. To be able to allocate working time around personal and professional obligations
   5. All of the above

4. Microbrowsers have all of the following capabilities except:
   1. small file size
   2. all the features of regular browsers
   3. can work with small screen size on wireless devices

1. 4. can work with relatively low bandwidth of some wireless devices
   5. can work with intermittent wireless signals

5. Of the following, which is the major problem with smart phones?
   1. They are too slow.
   2. They are too expensive.
   3. They can be used to compromise security.
   4. Their screens are too small.
   5. Their browsers are not fully functional.

6. The capabilities of smart phones include all of the following except:
   1. calculator
   2. e-mail
   3. global positioning system
   4. corporate transaction processing
   5. full-function Internet browser

7. Unfortunately, many managers consider smart phones as only                    , rather than as     that can transmit wirelessly.
   1. phones, digital cameras
   2. phones, pagers
   3. digital cameras, phones
   4. digital cameras, pagers
   5. cheap, expensive devices

8. Microwave transmission systems are used for                 volume,         distance,           communications.
   1. low, long, broadcast
   2. low, short, line-of-sight
   3. high, long, broadcast
   4. high, short, broadcast
   5. high, long, line-of-sight

9. Which type of satellite has the largest footprint?
   1. low earth orbit
   2. medium earth orbit
   3. geostationary
   4. polar orbit
   5. equatorial orbit

10. The area of the earth reached by a satellite’s transmission is called    .
    1. a hotspot
    2. coverage
    3. a footprint
    4. a zone
    5. the wireless area

11. The greatest problem with GEO satellites is which of the following?
    1. Propagation delay
    2. Expense
    3. Orbital life
    4. Size of footprint
    5. Relative speed with respect to a point on the earth’s surface

12.          is a satellite-based tracking system that enables the determination of a person’s position.
    1. Bluetooth
    2. Wireless application protocol
    3. Short message service
    4. Wi-fi
    5. Global positioning system

13. Which of the following is not an advantage of radio?
    1. no metallic wires needed
    2. propagate easily through office walls
    3. devices are inexpensive
    4. creates no electrical interference problems
    5. devices are easy to install

14. The main problem with radio transmission is which of the following?
    1. Radio waves cannot travel through walls.
    2. When you travel too far from the source, the signal fades.
    3. Devices are difficult to install.
    4. Radio waves are slow.
    5. Devices are expensive to install.

15. The most common wireless technology for TV and DVD remote control devices is:
    1. Bluetooth
    2. Ultra wideband
    3. Near field communications
    4. Wi-Max
    5. Infrared

16.          is a wireless standard that enables temporary, short-range connection between mobile devices.
    1. Bluetooth
    2. Wireless application protocol
    3. Short message service
    4. Wi-fi
    5. Global positioning system

17. Which of the following is the most appropriate wireless networking standard for creating personal area networks?

1. 1. Wi-Fi
   2. Cellular radio
   3. Microwave
   4. Bluetooth
   5. Wi-Max

18. Which of the following is the most appropriate wireless technology for real-time location of caregivers and mobile equipment in health-care environments?
    1. Wi-Fi
    2. Microwave
    3. Ultra wideband
    4. Infrared
    5. Bluetooth

19.         , with the shortest range of any wireless network, is designed to be used with contactless credit cards.
    1. Near field communications
    2. Bluetooth
    3. Ultra-wideband
    4. Wi-Fi
    5. Infrared

20. Which of the following statements about Wi-Fi is not correct?
    1. Wi-Fi provides simple Internet access.
    2. Laptop PC scans contain chips that can send and receive Wi-Fi signals.
    3. Many companies offer free Wi-Fi access in their stores.
    4. Wi-Fi requires encryption for secure transmissions.
    5. Wi-Fi is expensive to set up.

21. Which of the following is not an inhibitor of faster Wi-Fi expansion?
    1. Users cannot roam from hotspot to hotspot if the hotspots use different Wi-Fi network services.
    2. There is a lack of security.

1. 3. The growth of Wi-Max
   4. Unless the service is free, users have to log on to separate accounts for each hotspot.
   5. Wi-Fi services may not survive in the face of free hotspot access.

22. A small geographical perimeter within which a wireless access point provides service to a number of users is called:
    1. a transceiver
    2. a hotspot
    3. local reception
    4. a wireless network
    5. GPS location

23. Today, most wireless local area networks use the          standard, which can transmit up to 54 Mbps and has a range of about 300 feet.

A. 802.11a

B. 802.11b

C. 802.11c

D. 802.11g

E. Wi-Max

24.          use multiple Wi-Fi access points to create a wide area network.
    1. Mesh networks
    2. Pervasive networks
    3. Global networks
    4. Fixed networks
    5. Ubiquitous networks

25.          communicate(s) via radio waves using radio antennas placed within adjacent geographic areas.
    1. Bluetooth
    2. Cell phones
    3. A satellite
    4. Ultra-wideband

1. 5. Near field communications

26. The         standard can transmit up to 75 Mbps and has a range of 31 miles.
    1. Wi-Fi

B. 802.11b

C. 802.11c

D. 802.11g

E. Wi-Max

27. Mobile computing has two major characteristics that differentiate it from other forms of computing. What are these two characteristics?
    1. mobility, broad reach
    2. mobility, lack of expense
    3. security, broad reach
    4. security, mobility
    5. broad reach, localization

28. With regard to mobile computing,          means that it is easy and fast to access the Web and other mobile devices.
    1. ubiquity
    2. convenience
    3. instant connectivity
    4. b and c
    5. a, b, and c

29. With regard to mobile computing,          means that knowing where a user is physically is a key to offering relevant products and services.
    1. ubiquity
    2. convenience
    3. instant connectivity
    4. personalization
    5. localization of products and services

30. The development of mobile commerce is driven by all of the following factors except:
    1. widespread availability of mobile devices
    2. the cell phone culture
    3. increasing prices
    4. bandwidth improvement
    5. no need for a PC

31. Which of the following is not a mobile application in financial services?
    1. transaction processing systems
    2. mobile banking
    3. wireless electronic payment systems
    4. micropayments
    5. wireless wallets

32. Parking meters that you can pay via your mobile telephone are an example of:
    1. mobile banking
    2. wireless electronic payment
    3. wireless wallet
    4. brokerage service
    5. money transfer

33. If you buy a hot dog at a concession stand using your contactless credit card, you are using:
    1. a wireless money transfer
    2. a wireless wallet
    3. a wireless bill payment
    4. a micropayment
    5. a wireless electronic payment system

34. Putting ads on top of taxicabs in New York City that change as the cabs travel around the city is an example of:
    1. viral marketing
    2. permission advertising
    3. geographical advertising
    4. location-based advertising
    5. direct marketing

35.          refer(s) to the wireless communication of location-based information and control messages to and from vehicles and other mobile assets.
    1. Location-based services
    2. Telematics
    3. Pervasive services
    4. RFID
    5. Wi-Fi

36. Sense networks track users by all of the following except:
    1. GPS
    2. traffic cameras
    3. cell towers
    4. Wi-Fi networks
    5. None of the above

37.          is the science that measures physical remoteness by means of wireless transmission from a remote source to a receiving station.
    1. Telemetry
    2. Wireless access point
    3. Cellular radio
    4. Microwave
    5. Wireless positioning

38. The generic term for technologies that use radio waves to automatically identify individual items is:
    1. telemetry
    2. bar codes
    3. shipping labels
    4. radio-frequency identification
    5. wireless access point

39. Which of the following is not a limitation of barcodes?
    1. They require line-of-sight to the scanning device.
    2. They are printed on paper.
    3. They identify the manufacturer, product, and item.
    4. They are difficult to use in a manufacturing plant.
    5. They are useless in determining expiration date.

40. The major problem with RFID has been:
    1. expense
    2. bandwidth
    3. location
    4. RFID readers
    5. RFID tags

41. Based on the RFID discussion in Chapter 7, what would be the best use of RFID in a business?
    1. Transaction processing
    2. Supply chain management
    3. Personnel tracking
    4. Enabling communications with customers
    5. Decreasing network costs

42. The advantages of RFID tags to Staples include all of the following except:
    1. accurate inventory

1. 2. precise location of each item in stores
   3. reduced transaction costs at checkout
   4. movement history of each item through the store to moment of sale
   5. labor savings

43. The advantages of RFID tags at the Beijing Olympics included all of the following except:
    1. protection against counterfeit tickets
    2. ensured safety of perishable food
    3. enabling China to sell more tickets internationally
    4. ensuring security of athletes
    5. protecting against counterfeit credentials

44.          collect data from many points over an extended space.
    1. Bluetooth networks
    2. Ultra-wideband networks
    3. Wireless sensor networks
    4. Wi-Max networks
    5. Wi-Fi networks

45.          is a wireless networking protocol that relies on magnetic rather than electrical energy.
    1. Zigbee
    2. Bluetooth
    3. Wi-Fi
    4. RFID
    5. RuBee

46. Which of the following may be used for reading utility meters without a person having to get out of a truck?
    1. RuBee
    2. ZigBee
    3. Wi-Fi
    4. Near field communications

1. 5. RFID

47. The basic benefits of the Greenbox smart grid system include all of the following except:
    1. to provide decision support capabilities for utility company managers
    2. to save money on energy savings for homeowners
    3. to educate homeowners on energy consumption
    4. to enable variable rate pricing for energy for homeowners
    5. to enable homeowners to compare their energy consumption with their neighbors

48. The act of locating wireless local area networks while moving around a city is called:
    1. war dialing
    2. war driving
    3. war hacking
    4. war cracking
    5. war chalking

49. A(n)          allows unauthorized entry into a wireless network.
    1. lack of encryption
    2. disgruntled employee
    3. open node
    4. illegal server
    5. rogue access point

50.          refers to efforts by unauthorized users to access data traveling over wireless networks.
    1. RF jamming
    2. War driving
    3. Eavesdropping
    4. War chalking
    5. Installing rogue access points