ERROR DETECTION OR CORRECTION TECHNIQUE

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PARITY CHECK

If a transmitter transmits 111001 data and the receiver examines it then count the number of once and the data. If once or odd (no error) or if the bits it inverted than receiver detect error.

CRC

K-bit message and n-bit sequence generated by the transmitted (FCS=Frame Check Sequence) so the resulting frame consists of K+n bits.

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