How many Boolean algebra and logic circuits questions are there for 9618?

Open MarkScheme to attempt a real 9618 past-paper question on Boolean algebra and logic circuits against the official scheme. Topic-tagged stems are added as we verify them.

How are Boolean algebra and logic circuits answers marked?

Type or photograph your working and MarkScheme scores it against the real 9618 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.

Where can I learn Boolean algebra and logic circuits first?

Start with the free Computer Science lesson on Boolean algebra and logic circuits, then come back and drill past-paper questions under timed conditions.

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9618 · topic questions

Boolean algebra and logic circuits

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Practise Boolean algebra and logic circuits with marking

Pick a real 9618 past-paper question on syllabus point 15.2, type or photograph your answer, and get Examiner's Ink against the official scheme.

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Worked example

What a lost mark actually looks like

This answer reaches the right coordinates and still drops a mark — the conclusion is stated, but never justified. Examiners pay for the reasoning, not the answer.

MARKED

80%

Strong

M1dy/dx = 3x^2 - 12x + 9M1 earned
M1(x - 1) $(x - 3) = 0$ M1 earned
A1 $x = 1$ or $x = 3$ A1 earned
B1(1, 5) is a maximum and (3, 1) is a minimumB1 not earned

B1 — withheld
You stated the nature of each point correctly, but stated it without justification. This mark needs the reasoning shown — either evaluate the second derivative (d²y/dx² = 6x − 12, giving −6 at $x = 1$ and +6 at $x = 3$ ) or show a sign change of dy/dx either side of each point. An unsupported assertion earns nothing here even when the conclusion is right.

Boolean algebra and logic circuits (9618) past-paper questions — marked instantly

These are real Cambridge Computer Science past-paper questions on Boolean algebra and logic circuits. Open one, attempt it, then upload your working — MarkScheme grades it against the official 9618 mark scheme so you see exactly where the marks are won and lost on this topic.

Mark your answer →Learn Boolean algebra and logic circuits 9618 grade boundaries

Frequently asked questions

How many Boolean algebra and logic circuits questions are there for 9618?: Open MarkScheme to attempt a real 9618 past-paper question on Boolean algebra and logic circuits against the official scheme. Topic-tagged stems are added as we verify them.
How are Boolean algebra and logic circuits answers marked?: Type or photograph your working and MarkScheme scores it against the real 9618 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.
Where can I learn Boolean algebra and logic circuits first?: Start with the free Computer Science lesson on Boolean algebra and logic circuits, then come back and drill past-paper questions under timed conditions.