Topic

CRC

3 questions in this topic.

2013 Q4(c)(i)Link LayerCRC· 1 marks

The generator function G for your Layer 2 Protocol’s Cyclic Redundancy Check is 1001. You have received the data D, 101000011. Answer the following questions with reference to G and D. You may assume that any error detection bits are found after the data bits. What is the largest burst error that we can detect with G?

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2013 Q4(c)(ii)Link LayerCRC· 2 marks

The generator function G for your Layer 2 Protocol’s Cyclic Redundancy Check is 1001. You have received the data D, 101000011. Answer the following questions with reference to G and D. You may assume that any error detection bits are found after the data bits. Which of the bits in D are the error detection bits and what is their value?

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2013 Q4(c)(iii)Link LayerCRC· 5 marks

The generator function G for your Layer 2 Protocol’s Cyclic Redundancy Check is 1001. You have received the data D, 101000011. Answer the following questions with reference to G and D. You may assume that any error detection bits are found after the data bits. Has this data been transmitted correctly? Provide all working required to justify your answer.

EDCXOR division

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