Discussion
What is the bit pattern obtained for the sequence of bits 10110101 was sent in even parity by adding a bit at the end ?
Answer: A
The transmitted pattern is 101101011.
10110101 contains five 1s. With even parity, the parity bit makes the total number of 1s even, so it must be 1, appended at the end: 10110101 followed by 1.
101101010 would have an odd count of 1s, which is odd parity. Options C and D change the first bit of the data, which the parity scheme never does.
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