(a) Specify a bit error in the following 2-dimensional parity check matrix. 1 1 0 1 0 0 0 1 0 1 0 1 1 1 1 1 1 1 1 1 0 0 0 0 1 0 1 1 1 1 1 0 0 0 1 1 1 1 1 1 1 0 1 1 1 1 0 0 0 1 1 1 1 1 0 1 1 0 0 1 1 0 0 1 (b) Perform CRC check to determine whether the data has an error D+R=10101011 G = 1001

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