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Question:
(a) For the bit stream 010011, sketch the waveforms for each of the code indicated.
Assume the following: the signal level for the previous bit for NRZI was a 1 and was positive; the most recent preceding 1 bit (AMI) had a negative voltage; and the most recent preceding 0 bit (pseudoternary) had a negative voltage. (Let 0 be positive for NRZ-L)
(b) Describe fully how you can use a (11/7) Hamming code to:
(i) detect and;
(ii) correct by giving the correct transmitted character;
if an incorrect codeword representing character "K" is received:
(ASCII value of "K" is 75)
(c) Describe the procedure known as byte stuffing. Explain why and when it is used and how it actually works.
Problem (a) Name the various layers of the OSI model. (b) Show, by means of a diagram, how the TCP/IP reference model is different from the OSI-7 reference model? Why is
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Sometimes the special character may see in data and as a part of data they will be misinterpreted as packet data. The solution to this cause is Byte stuffing. In general to
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