Multiple choice

A simple parity check code can detect

  1. Odd number of errors

  2. Even number of errors

  3. Positive number of errors

  4. Negative number of erros
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A Correct answer
Explanation

A simple parity check adds a single bit to make the total number of 1s either even or odd; it can only detect an odd number of bit errors, as an even number of errors would restore the parity bit to its original state.

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