Q1. (a) Show using an example, that two-dimensional (i.e. horizontal and longitudinal) block check parity schemes can detect all 3-bit errors in a block [4 marks] of data. (b) The IP protocol specifies four primary classes of network address formats, including multicasting, addressing formats are defined. With the aid of a diagram, show how each of these 5 marks] (c) The circuit shown in the Figure Q1 below is used as a convolutional encoder; S1 through S4 are the
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