4. Smartphones and tablets are typically wirelessly connected to the Internet via cellular or Wi-Fi network....
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4. Smartphones and tablets are typically wirelessly connected to the Internet via cellular or Wi-Fi network. The challenges posed by wireless networking are different from traditional wired computer networks. Considering wireless and mobile network, answer the following: (a) A wireless link differs from a wired link. Briefly describe the characteristics and challenges of wireless links. (8 marks) (b) Briefly explain the difference between the two terms infrastructure and ad-hoc when used to describe the operational modes of a Wi-Fi access point. And in what circumstances is it appropriate to use the ad-hoc mode? (6 marks) (c) Give a brief description of the 3G cellular network architecture. Also, which enhancements does the 4G-LTE network have over the 3G network? (6 marks) 4. Smartphones and tablets are typically wirelessly connected to the Internet via cellular or Wi-Fi network. The challenges posed by wireless networking are different from traditional wired computer networks. Considering wireless and mobile network, answer the following: (a) A wireless link differs from a wired link. Briefly describe the characteristics and challenges of wireless links. (8 marks) (b) Briefly explain the difference between the two terms infrastructure and ad-hoc when used to describe the operational modes of a Wi-Fi access point. And in what circumstances is it appropriate to use the ad-hoc mode? (6 marks) (c) Give a brief description of the 3G cellular network architecture. Also, which enhancements does the 4G-LTE network have over the 3G network? (6 marks)
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a Characteristics and Challenges of Wireless Links Characteristics Limited Bandwidth Wireless links often have lower bandwidth compared to wired connections Signal Interference Signals can be affected ... View the full answer
Related Book For
Principles Of Information Security
ISBN: 9780357506431
7th Edition
Authors: Michael E. Whitman, Herbert J. Mattord
Posted Date:
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