1. For the 10-bits stream of " 1001101011 ", sketch the waveforms for the following schemes: (i) NRZ-I (ii) AMI (iii) 2B1Q (iv)Differential Manchester (v) MLT-3 Assume that the signal level for the preceding for NRZI was low; the most recent preceding "1" bit (AMI) has a negative voltage; for 2B1Q, the most recent preceding bit ends at low voltage: the most recent preceding bit (differential Manchester) ends at low voltage; and the most preceding bit has a negative voltage for MLT-3. (20 Marks)