Question: Consider a CRC code with a generator polynomial of g(x) = x4 + x + 1. a. Show step by step (using longhand division) how

Consider a CRC code with a generator polynomial of g(x) = x4 + x + 1.

a. Show step by step (using longhand division) how to find the codeword that corresponds to information bits of 10001.

b. Show the shift-register circuit that implements this CRC code.

c. Suppose the codeword length is 9.

i. What fraction of error bursts of length 7 is undetectable by this CRC code? Justify your answer.

ii. Give two examples of undetectable error bursts of length 7. Justify your answers.

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