Deck 8: Wireless, Mobile Computing, and Mobile Commerce

Question 1

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

Answer 1

True

Question 2

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

Answer 2

False

Question 3

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

Answer 3

A AND C

Question 4

Which of the following technologies is wireless but not mobile?

A) Smart phones
B) Laptops
C) Tablet computers
D) Microwave towers

Question 5

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

Question 6

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.

Question 7

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.

Question 8

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.

Question 9

_____ 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

Question 10

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

Question 11

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

Question 12

Wi-Fi networks are typically classified as _______ wireless networks

A) Short-range
B) Medium-range
C) Wide-range
D) None of these

Question 13

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

Question 14

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

Question 15

_____ 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

Question 16

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.

Question 17

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

Question 18

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