O-LevelComputer ScienceBoolean logic2210/11 · May/June 2022 · Q810 Marks
Consider the following logic statement: X = (((A AND NOT B) OR (NOT (B NOR C))) AND C)
- (a)Draw a logic circuit to represent the given logic statement. Do not attempt to simplify the logic statement. All logic gates must have a maximum of two inputs.[6]
- (b)Complete the truth table for the given logic statement. A B C Working space X[4]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (May/June 2022). The mark or mark type is shown in brackets.
- [6] One mark for each correct logic gate with correct input(s)
- [4] Four marks for 8 correct outputs Three marks for 6/7 correct outputs Two marks for 4/5 correct outputs One mark for 2/3 correct outputs
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