Discussion
Statement I: A single parity bit provides strong error protection.
Statement II: Parity detects any odd number of bit errors in a word.
In the light of the above statements, choose the correct answer.
Answer: C
The second statement is correct but it does not support the first: an even number of errors passes undetected. That blind spot is exactly why later buses use checksums and cyclic redundancy checks. Parity alone is not enough.
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