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An FCS error detection mechanism is used over a communications link. The message bit sequence is...

An FCS error detection mechanism is used over a communications link. The message bit sequence is 101011. An FCS generator pattern of 1011 is used to generate the FCS sequence.

A) How many FCS bits are generated? What are they? What is the transmitted bit sequence? Identify the FCS bits in that sequence. Show details of your work.

B)Now suppose the received sequence is 010010111. Was it received correctly? What is the receiver decision and what was the message sequence according to the receiver? Can you tell how many bit errors occurred?
C)Now suppose the channel introduces the following error sequence 100010111. Will the receiver be able to detect the error? Prove your answer analytically

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