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The function F = AB + A'C is implemented using a two-level AND-OR circuit. A static-1 hazard can occur when

1955Medium DSSSB TGT Computer Science 0 replies 1 views

AA = 0, B = 1 and C changes
BA = 1, B = 0 and C changes
CB = 0, C = 0 and A changes
DB = 1, C = 1 and A changes from 1 to 0

Correct answer: D

Explanation

With B = C = 1 the output should stay 1 while A switches, but the inverter delay can leave both AB and A'C at 0 momentarily; adding the consensus term BC removes the glitch.

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