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CS601 Data Communication Assignment No 3 Solution & Discussion Due Date:04-06-2012

Q. 1. Suppose you have been asked to give a proposal of a Local Area Network for a company which requires easy reconfiguring, efficient in speed and economical in cost network. Considering these three factors, which guided media you will prefer for this type of network? Give three good reasons to support your answer.

(2 Marks for suggestion/name of media and 3 marks for three reasons) [2+3 = 5]



Q. 2. Analog signals are considered more prone to Noise as compared to digital signals. Suggest a proper method or technique with its complete steps for a telecommunication company which wants to convert its analog signals in digital signal to avoid from noise.

Note: just name the technique and its steps, detail is not required.  [5 Marks]



Q. 3. In Data Communication, situations exist where we need to change the Digital Signals into Analog Signals.  Select the technique(s) which is/are used by modems for this purpose. Choose all that apply. [10 Marks]


  1. B8ZS
  2. Quantization Amplitude Modulation
  3. Amplitude Shift Keying
  4. Frequency Shift Keying
  5. Frequency Modulation
  6. Frequency Reducing Key
  7. Frequency Division Multiplexing
  8. Phase Shift Keying
  9. Phase Modulation
  10. Quadrature Amplitude Modulation
  11. Manchester Encoding Scheme
  12. 4 PSK





  • Assignment should be in your own wordings not copied from Internet, handouts or books.


  • Your answer should be “to the point”.

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Replies to This Discussion

Can you Shear it plz.

agar assignment pe confirm nhe hoe to phr kyun kaha ke assignment aasan hea

toe solution btaoooooooooo dear

agar tough nhe hea toe exact sol btaooooooooooooooooooooooooooooo jaldi aag last date hea

tough ho ya easy plzzzzzzzzz koi solution de na

pta hai bhai aap sub parhako bachey ho, par hum jaise nikamon ke lie to solution chor do..

hahaha im with you

Analog to Digital conversion

  1. PAM
  2. PCM
  • Quantization
  • Binary Encoding
  • Digital to Digital Conversion

3rd Question:

  1. ASK
  2. FSK
  3. PSK
  4. QAM

agar kuch change ho ya wrong ha tou share karin plz

And 5th one is 4PSK

Phase Modulation and Frequency modulation analog to analog conversion main ata ha Frequency Division Multiplexing abi parha ni ha I think yay 5 he hain bs

i think 1st Q ma twisted pair cable aya ga

i think you are ri8 its unshielded twisted-Pair (UTP) Cable.

Answer to 3rd question of 3rd assignment.

1. Amplitude Shift Keying
2. Frequency Shift Keying
3. Phase Shift Keying
4. Quadrature Amplitude Modulation
5. 4 PSK


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