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Assignment No. 1

Semester: Fall 2014

Data Communication - CS601


Total Marks: 15


Due Date: 18/11/2014




To have the understanding of routing using switches and WAN technologies.


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Question No.1 (10 Marks)

Let us consider a computer network in which each computer has number of I/O ports equal to 8. In this network every device has dedicated point to point link to every other device. You are required to fill in the following table with correct answers:



Number of computers




Number of links for this network






Question No. 2 (5 Marks)

Write the correct Transmission Mode for each of the following hardware devices in the given table?



Hardware devices

Transmission mode









Fax Machine



Wish You All The Best



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Replies to This Discussion



Can any 1 tell me ,.,. how many lectures this assignment covered? may be 1 to 6?

Number of computers



I/O ports+1=No. of Computers


Number of links for this network





Number of computer=8

number of i/o ports = 8-1=7

number of links =8(8-1)/2=28


 Can you please tell me that why you use the subtraction ... I am little bit confuse while using the right method ? Simple which one is right and which one is wrong

read chapter no.5 carfully

Read question carefully

each computer has number of I/O ports equal to 8 
It does not mean no. of computer equal to 8
so,8+1=9 and 9(9-1)/2=36

a.o.a ap ny n+1=no of computers ka formula kaha sy lia hai?plz tel me

lecture no.5

nice ,.,keep it up



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