CS-601
Data communication
Assignment
1 Fall 2020
Solution
Scenario
Star-Lab is a newly established medical diagnostic center in Lahore. This lab currently has only one branch (Branch No.1) in Lahore having 7 computers and each computer has dedicated full-duplex point to point link with each other. All operations of the lab are handled through an efficient Management Information System.
The higher authorities of the Lab are now planning to establish new branches in Karachi and Islamabad, the Lahore branch will be considered as head quarter. Proper networking is required among all the branches and within each branch office. Heavy budget consumption leads to the decision that Branch-2 (Karachi) and Branch-3(Islamabad) will have a network with a central device that will be used to forward data only to intended destination.
After carefully reading the above scenario, write the answer of each of the questions given in the following table:
|
Sr. No |
Question |
Answer |
|
1 |
Which TCP/IP
layer will be responsible for
end-to-end communication over this network? |
Network layer |
|
2 |
Which type of
network will be established between network of Karachi branch and network of
Lahore branch? |
Point to
point WAN |
|
3 |
Which device
will connect network of Karachi branch with network of Lahore branch? |
Router |
|
4 |
Calculate the
total No. of links between computers for Branch No. 1 |
n(n-1)/2 |
|
5 |
Which
topology will be used inside Branch-2 and Branch-3? |
Star |
Question No. 2
Identify the proper type of transmission mode for each of the following devices.
|
Device |
Transmission Mode |
|
Keyboards |
Simplex |
|
Television
broadcast |
Simplex |
|
Telephone
conversation |
Full duplex |
|
Walkie-Talkie |
Half duplex |
|
Loud-Speaker |
Simplex |
Presented By: Zaheer Ul Islam Shahin
By Channel: Learn with Zaheer
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