BTE Chapter 8 HW Questions

1) Which of the following technologies is wireless but not mobile? a) Smart phones b) Laptops c) Tablet computers d) Microwave towers

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

3) The major types of wireless media are: a) Satellite, radio, microwave, and television. b) Cellular, television, radio, and microwave. c) Microwave, satellite, radio, and infrared. d) Smart phones, satellite, television, and radio.

5 GPS are supported by ___ satellites a) LEO b) MEO c) GEO

4) Which of the following statements about wireless devices is not true? a) They are small enough to easily carry or wear. b) They have sufficient computing power to perform productive tasks. c) They have strong security feature that make them impossible to hack. d) They can communicate wirelessly with the Internet and other devices.

6) Which of the following statements about Wi-Fi is not correct? a) Wi-Fi provides simple Internet access. b) Laptop PC scans contain chips that can send and receive Wi-Fi signals. c) Many companies offer free Wi-Fi access in their stores. d) Wi-Fi requires encryption for secure transmissions. e) Wi-Fi is expensive to set up.

7) _____ use multiple Wi-Fi access points to create a wide area network. a) Mesh networks b) Pervasive networks c) Global networks d) Fixed networks e) Ubiquitous networks

8) Bluetooth devices can be used to establish NFC for mobile commerce.

9) Wi-Fi networks are typically classified as _______ wireless networks a) Short-range b) Medium-range c) Wide-range d) None of these

10) The two major characteristics that differentiate mobile computing from other forms of computing are _______ and _________. a) mobility, broad reach b) mobility, lack of expense c) security, broad reach d) security, mobility e) road reach, localization

11) With regard to mobile computing, _____ mean(s) that it is easy and fast to access the Web and other mobile devices. a) ubiquity b) convenience c) instant connectivity d) Both of the following are correct: convenience and instant connectivity e) All of these

12) The main purpose of location-based applications is to broadcast your current location coordinates to local businesses.

13) The development of mobile commerce is driven by the following factors (choose all that apply) a) widespread availability of mobile devices b) increasing prices of mobile devices c) bandwidth improvement d) higher costs for wireless services

14) The technology that uses radio waves to identify individual items is: a) telemetry b) bar codes c) shipping labels d) radio-frequency identification e) wireless access point

15) All of the following statements regarding QR codes are true except: a) QR codes can store more information than bar codes. b) QR codes can only store information that is comprised of numbers or text. c) QR codes are more resistant to damage than bar codes. d) QR codes can be read from any direction or angle.

16) _____ collect data from many points over an extended space. a) Location-based applications b) Ultra-wideband networks c) Wireless sensor networks d) Wi-Max networks e) Wi-Fi networks

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

18) Wireless jamming introduces noise in the environment to stop people from eavesdropping on private conversations.

19) An "evil twin" is associated with which type of threat to wireless networks? a) Rogue access points b) War driving c) Eavesdropping d) RF jamming