a) Pulse code modulation (PCM) is applied on a binary symbol of 10110001102. Show the waveform after being partitioned via subgroup (ii) (iii) (i) The non-return to zero-level (NRZ-L) The bipolar return to zero (Bipolar RZ). The bi-phase-level (Manchester Coding). (iv) The dicode return to zero (Dicode RZ). (v) The non-return to zero-Mark (NRZ-M) (vi) The Unipolar return to zero (UniPolar RZ). (2 Marks/ Markah) (2 Marks/Markah) (2Marks/ Markah) (2 Marks/ Markah) (2 Marks/ Markah) (2 Marks/ Markah)