Unit 9 Assignment

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Kean University *

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2920

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Electrical Engineering

Date

May 6, 2024

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pdf

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1

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Unit 9 Assignment 1. State at least three reasons why messages are broken into packets for transmission through a network. Messages are broken into packets for network transmission to improve efficiency by allowing data from multiple sources to be interwoven, which maximizes bandwidth usage. It enhances error handling because only the individual erroneous packets need to be resent, not the whole message. Lastly, it aids in congestion control, enabling the network to manage traffic loads better and reroute packets if necessary to avoid delays. 2. Discuss the trade-offs between circuit switching, packet switching, and virtual circuit switching. Packet switching is generally preferred for the internet, where variable traffic patterns and high scalability are common, whereas circuit switching may be used in traditional telephony and some dedicated line services. Virtual circuit switching is often used in frame relay and some types of ATM networks, where it provides a balance between the predictable performance of circuit switching and the efficiency of packet switching. 3. Draw a six-node full mesh network. How many connections did your drawing require? How many connections would a fifty-node full mesh network require? For a six-node full mesh network, connections = 6*(6-1)/2 = 15, for a fifty-node full mesh network, connections = 50*(50-1)/2 = 1225
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