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(a) Consider the data sequence 10000011000010 Encode the sequence using HDB3. (4 marks) (b) A digital link uses a channel that can convey frequency from de to B Hz. Suppose the line coding NRZ Polar is used to send a maximum data rate of 100 Mbits/s using raised cosine pulse with roll-factor Q = 0.6. (i) What is the symbol rate of the code? (2 marks) (ii) What is the minimum value of B? (2 marks)