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Question 1: [5]

Match the following to one of the five layers.

a. Route determination

b. Flow control

c. Interface to physical world

d. Provide access to the network for the end users

e. Packet switching


Question 2: [5]


If the throughput at the connection between the device and transmission medium is 5 Kbps,how long does it take to send 400,000 bits out of this device?


Question 3: [5]


Give the Signal level for each line encoding from following.

a. Unipolar

b. NRZ-L

c. NRZ-I

d. RZ

e. AMI


Lectures Covered: This assignment covers Lecture # 08-17DeadlineYour assignment must be uploaded/submitted till Tuesday 03 May, 2011.

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Replies to This Discussion

Please Discuss here about this assignment.Thanks

paint main bana ke copy paste kerlo







ye ghalat hai

small b is for bit while capital B is for byte

KBps=kilo bytes per second

Kbps=kilo bits per second

1kb = 1024 bytes

please explain the formula u apply in ths question........... what value we have to find out.


Packet switching is done by data layer .. it makes big streams into small packet.. Read the artical...
Network layer work is to route and logical adreesing.. not to make packets.....

I think it will take 1.30

5 kbps =5120 bits

400000/5120 = 78.125 Seconds = 1.30 (1 Minute and 30 Seconds)

What do you think?

I Google a bit

5 kbps = 5000 bits

400000 / 5000 = 80 Seconds



400000bits/1024 = 390.625 kilobits

390.625kb/5kbps = 78.125 seconds or 1.3020 minutes

bhai u r wrong

bytes kay liye 'KBps' use hota hai na kay 'kbps' . 'kbps' stands for kilo bits per second

Imran is rite


  • 1 Kbps = 1 kbps = 1 kilobit per second = 1,000 bits per second
  • 1 Mbps = 1,000 Kbps
  • 1 Gbps = 1,000 Mbps
echnically, network speed can also be expressed in units of bytes per second, abbreviated as "Bps" with a capital 'B'. Use of these quantities is discouraged in networking to avoid confusion with the bits per second standard:
  • 1 KBps = 1 kBps = 1 kilobyte per second = 8,000 bits per second


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