614 ocRc ia co trueted to agcnerate a t message. The generator 4-bit FCS fora polynomial is x+x3+1 polynomial is ' X- 1. a. Draw the shift register circuit that would perform this task (see Figure 6.6). b. Encode the data bit sequence 10011011100 (leftmost bit is the least significant) using the generator polynomial and give the codeword. c. Now assume that bit 7 (counting from the LSB) in the codeword is in error and show that the detection algorithm detects the error