Two computers that communicate with each other use a simple parity check to detect errors for ASCII ...........

Computer GK Networking

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?

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

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

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

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

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Explanation:

Ans: A
Two bits or any even number of bits inverted in a byte during transmission. A parity bit, or check bit, is a bit added to a string of binary code. Parity bits are a simple form of error detecting code. Parity bits are generally applied to the smallest units of a communication protocol, typically 8-bit octets (bytes), although they can also be applied separately to an entire message string of bits.