Two computers that communicate with each other use a simple parity check to detect errors for ASCII transmissions. Which of the following events will always lead to an undetected error?

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Two bits or any even number of bits inverted in a byte during transmission

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One bit or any odd number of bits inverted in a byte during transmission

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Two bits or any even number of bits inverted in a block during transmission

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One bit or any odd number of bits inverted in a block of data during transmission

Q. Two computers that communicate with each other use a simple parity check to detect errors for ASCII transmissions. Which of the following events will always lead to an undetected error?

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