CS206 Assignment 2 Solution and Discussion Spring 2020

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                     Assignment No. 01
                    Semester: Fall 2019

CS206: Introduction to Network Design & Analysis Total Marks: 10

Due Date: 14/11/2019

Instructions:
Please read the following instructions carefully before submitting assignment:
You need to use MS word document to prepare and submit the assignment on VU-LMS.
It should be clear that your assignment will not get any credit if:

 The assignment is submitted after due date.
 The assignment is not in the required format (.doc or docx)
 The submitted assignment does not open or file is corrupt.
 Assignment is copied (partial or full) from any source (websites, forums, students, etc)

Objectives:

To enhance the learning capabilities of the students about:

• Ethernet LAN
• Virtual LAN
• MAC addressing

Assignment

Scenario

A university has a small network infrastructure to support its routine operations which are divided among different departments like Administration, Registration, Examination, Finance, IT and Academics. A switch has been deployed to connect all the systems of these departments to a single broadcast domain. Considering the above-mentioned scenario, you are required to answer the following:

Question 1:

a) If a packet is received by a system in Examination department, how would the switch will decide that the packet is either unicast or broadcast?

b) If a broadcast packet is generated by a system in Finance department, which system(s) will not receive this broadcast packet?

Solution:

Question 2:

In continuation of the scenario given in Q. No. 1, the university administration decides to secure the two departments (finance and examination) by connecting these on a separate LAN named as LAN B. So, network department can deploy a separate switch to connect all the systems of these departments.
Now there are total two LANs in this university, LAN A and LAN B. LAN B consists of finance and examination departments. LAN A consists of all remaining departments excluding finance and examination.

a) If there is no trunk between the two LANs and a broadcast packet is generated by a system in Finance department; which system(s) will not receive this broadcast packet?
b) As a network professional, what approach will you suggest to the network department to enable the communication among both LANs without bearing any extra cost?

Solution:

Best of Luck!