CS432 Assignment 1 Solution Spring 2026

This assignment focuses on the practical application of network modeling and simulation using the OMNeT++ tool. Students will explore scenarios involving university network planning, performance analysis, and traffic simulation. The tasks require explaining theoretical concepts, identifying simulation components, and discussing the effects of network settings on performance. Students must demonstrate an understanding of how variables and functions operate within a simulation environment.

1. 1

   Question 1

   3 marks

   Explain the role of network modelling and simulation within the context of a university network setup. Additionally, identify two specific benefits of testing a network through simulation prior to its physical deployment.

2. 2

   Question 2

   3 marks

   Provide a clear differentiation between analytical modelling and simulation-based modelling. Use the provided scenario to give one concrete example for each of these two methods.

3. 3

   Question 3

   3 marks

   Define the network topology for a simulation involving four computers connected to a router. Identify two primary components of an OMNeT++ model and state one performance metric that can be measured in this specific simulation.

4. 4

   Question 4

   3 marks

   Describe the process for observing packet movement within OMNeT++. Explain the potential impact of increasing bandwidth on network performance and discuss the effect of packet loss on video streaming services.

5. 5

   Question 5

   3 marks

   Explain the purpose of using a variable in a TicToc simulation and describe the role of a function in controlling message transmission. Finally, state one inherent limitation of network simulation.

What to submit

One MS Word document (.doc or .docx) containing the assignment responses.

Topics covered

Network modeling OMNeT++ Network simulation Analytical modeling Network topology Performance metrics Packet movement Simulation variables and functions