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Data Communication & Networks Assignment

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Added on: 2023-02-20 13:45:31
Order Code: eqb6 20-2-23
Question Task Id: 0
  • Country :

    United States America

Problem 1 – HTTP Protocol Analysis

  1. Use a packet sniffer (e.g., Wireshark) to capture the sequence of ASCII characters that are sent and received by a web browser as a result of a request of your choice to a web server. Provide a screen capture of these sequences and add carriage return and line feed characters as needed to improve readability.
  2. Identify the complete URL of the document requested, the HTTP protocol version for both the request and response, the operating system that the web browser is running on, and the kind of web server that answered the request.
  3. Is the HTTP connection persistent?
  4. Which web browser sent the request and why is it important for the server to know this information?
  5. Was the request successful and, if so, what type of document was received by the server?

Problem 2 – Web Application Architectures

Explain how Web architectures were developed and refined to increasingly support applications with informational, interactive, transactional, and delivery requirements? Please relate to specific architectures, their corresponding protocols, and describe the improvements that were made over time.

Problem 3 – Real-Time Messaging Applications

List at least four mainstream real-time messaging applications. Document the protocols they use (along with references to corresponding IETF RFCs) and explain in detail how they differ. Please provide references and/or links to all documentation sources used to answer this question.

Problem 4 – Email Applications

List at least five mainstream email applications. Document the protocols they use (along with references to corresponding IETF RFCs) to send and receive emails and explain in detail how they differ. Please provide references and/or links to all documentation sources used to answer this question.

Problem 5 – Network Management Utilities

  1. Explain what the following utilities are used for: traceroute, ping, nslookup, ipconfig, dig?
  2. Identify at least three more utilities and explain what they are used for.
  3. For each one of the utilities introduced in 5.a. and 5.b., provide a detailed usage scenario along with corresponding screenshots as needed to fully document your example.

Problem 6 – Overlay Networks

  1. How is peer churn managed in P2P applications such as file-sharing, conferencing, and content distribution?
  2. Provide specific examples of P2P applications, explain how they specifically handle churn, and estimate the performance improvements achieved in each case. Please provide references and/or links to all documentation sources used to answer this question.

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  • Uploaded By : Katthy Wills
  • Posted on : February 20th, 2023
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