Discussion
Which of the following would not improve the integrity of bus data?
Answer: B
Correct answer: Running the bus closer to its capacity
Higher loading degrades integrity rather than improving it: queueing delays grow, worst-case latency becomes harder to bound, and there is less room to absorb a burst of traffic without loss.
The other three all help. Checking the sign status matrix stops a receiver acting on a value the source has flagged as unusable; a CRC catches the even-numbered error patterns parity misses; and a redundant second bus keeps data flowing when a cable is severed. Each addresses a different threat - misuse, corruption and loss.
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