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Summary COS2626 ASSIGNMENT 3 YEARLY MODULE 2021 (I GOT 96%)
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COS2626 Assignment 3 Semester 1 & % TRUSTED workings, explanations and solutions, with page references to the prescribed textbook.

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  • July 4, 2021
  • 11
  • 2020/2021
  • Summary

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Subject Computer Networks COS2626
Assignment 03 Semesters 1 & 2
Unique Assignment number 752700 (Semester 1)
742425 (Semester 2)
Study Material Chapters 1-12
Number of Questions 19

Question 1 [3]
Identify the CORRECT layer of the OSI (Open Systems Interconnection) Model.

1.1 The physical layer, is the simplest layer of all and is responsible only for sending [1]
P26 bits via a wired or wireless transmission.
1.2 The network layer moves messages from one node to another until they reach [1]
P25 the destination host.
1.3 Protocols such as HTTP, SMTP, POP3, IMAP4, FTP, Telnet, and RDP are used [1]
P23 at the application layer.

Question 2 [4]
Answer the following questions regarding ports and sockets

2.1 Port numbers are divided into THREE types. Name these THREE types. [3]
P131 a. Well-known ports
b. Registered ports
c. Dynamic and private ports
2.2 In the following diagram, the ? denotes a request for TELNET connection on [1]
P131 port 23.




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