9618 · Cambridge International AS Level
9618/21
Structured Questions
Computer Science · June 2024 · Variant 1
Relative difficulty
Analysis source: Cambridge Assessment International Education
3.5 / 5
150
210 min
Pseudocode Development and Algorithm Implementation
Cohort performance
Session statistics from official examination reports
Total marks
150
Duration
210 min
Session difficulty
3.5 / 5
Key examiner messages
Top priorities from the principal examiner before you revise
This exam series presents a solid, well-rounded challenge.
Paper 11 remains heavily content-focused, demanding granular knowledge of systems and physical hardware details (such as flash memory transistor and gate operations), whereas Paper 21 moves away from simple syntax recall towards architectural algorithm design, with high-weighting questions on file streaming, structure charts, and multi-step logic algorithms.
Question difficulty map
How candidates performed on each question in this series
No data available in official reports
Assessment objectives
Skill and AO weighting from official examiner commentary
Skill weighting
Shows the skill mix this paper tested most heavily.
System design & Database modelling
Weight: 8100%Analysis & Evaluation
Weight: 788%Logic &
Weight: 675%Architecture Pseudocode Compilation
Weight: 563%Database
Weight: 225%Schema D
Weight: 113%
Method marks watchlist
Where working, steps, or method marks were commonly lost
No data available in official reports
Recurring mistakes across years
Themes examiners flag in multiple recent sessions for this subject
No data available in official reports
Question choice intelligence
Mean scores and popularity for optional questions (HKDSE electives)
No data available in official reports
Level exemplars
What candidate scripts at each grade level looked like
No data available in official reports
Grade & admission context
How marks relate to grade thresholds and entry standards
Report type
Cambridge Principal Examiner Report — component performance and international standards
Level A
Approx. 63% of maximum mark
Level B
Approx. 53% of maximum mark
Level C
Approx. 45% of maximum mark
Level D
Approx. 36% of maximum mark
Level E
Approx. 27% of maximum mark
Deep insights
What top candidates did
Techniques and approaches examiners rewarded in this series
No data available in official reports
Command word playbook
How to match each command word to the expected response style
Give reasons and link mechanism to outcome; each point needs a because/so chain.
State features in sequence or list observable properties — do not explain causes unless asked.
Name or point to the specific feature asked for — avoid extra explanation.
Match the expected response style for “Write” questions.
Match the expected response style for “Complete” questions.
Time traps
Sections where candidates spent disproportionate time relative to marks
Min per mark: 2
Min per mark: 1.6
Min per mark: 1.6
Min per mark: 1.6
Min per mark: 1.2
Min per mark: 1.2
Syllabus traceability
Topics linked to questions and mark weighting in this session
Programming
40 marks this session
Algorithm Design and Problem-solving
29 marks this session
Databases
15 marks this session
MCQ trap analytics
Commonly chosen wrong options from examiner commentary
No data available in official reports
Topic heatmap across years
Mark concentration by topic and exam year for this subject
Mark intensity
Programming
Algorithm Design and Problem-solving
Databases
Information representation
Hardware
Paper comparison
Marks and duration breakdown across papers in this session
Paper 11 Theory Fundamentals:
Paper 21 Fundamental Problem-solving and Programming Skills:
Marks you can still earn
Where valid approaches outside the mark scheme may still gain credit
No data available in official reports
Practise what examiners flagged
Target weak topics from this report inside the Revui app
Programming
40 marks this session
Practise in RevuiAlgorithm Design and Problem-solving
29 marks this session
Practise in RevuiDatabases
15 marks this session
Practise in RevuiSelf-diagnostic checklist
Key actions before you sit this paper — copy and tick off as you revise
- 1Message
This exam series presents a solid, well-rounded challenge.
- 2Message
Paper 11 remains heavily content-focused, demanding granular knowledge of systems and physical hardware details (such as flash memory transistor and gate operations), whereas Paper 21 moves away from simple syntax recall towards architectural algorithm design, with high-weighting questions on file streaming, structure charts, and multi-step logic algorithms.
Teacher briefing pack
One-page session summary for tutors and classroom review
June 2024 2024
Computer Science
This exam series presents a solid, well-rounded challenge. Paper 11 remains heavily content-focused, demanding granular knowledge of systems and physical hardware details (such as flash memory transistor and gate operations), whereas Paper 21 moves away from simple syntax recall
This exam series presents a solid, well-rounded challenge.
Paper 11 remains heavily content-focused, demanding granular knowledge of systems and physical hardware details (such as flash memory transistor and gate operations), whereas Paper 21 moves away from simple syntax recall towards architectural algorithm design, with high-weighting questions on file streaming, structure charts, and multi-step logic algorithms.
- Total marks
- 150
- Duration
- 210 min
- Session difficulty
- 3.5 / 5
Session analysis
This exam series presents a solid, well-rounded challenge. Paper 11 remains heavily content-focused, demanding granular knowledge of systems and physical hardware details (such as flash memory transistor and gate operations), whereas Paper 21 moves away from simple syntax recall towards architectural algorithm design, with high-weighting questions on file streaming, structure charts, and multi-step logic algorithms.
Updated Jun 12, 2026
Paper breakdown
Paper 11 Theory Fundamentals:
Paper 21 Fundamental Problem-solving and Programming Skills:
Top chapters
Exam structure insights
Marks by chapter
See where the marks were concentrated so revision time goes to the highest-value topics.
Mark accessibility
Estimate which marks were basic, mid-level, or high-difficulty.
80% within easy or medium reach
Command word frequency
Spot common command words so answers match the expected response style.
Question type mix
Compare the mark share of each paper section and question type.
Structured/Short Answer Theory
49·10·33%
Pseudocode / Coding
35·4·23%
Database Design & SQL
20·3·13%
Other Calculations
(Binary/Bitwise/Math)
19·3·13%
Trace Tables / Dry Runs
17·3·11%
Flowcharts & Diagrams
10·2·7%
Study ROI
Bigger bubbles recur more often; higher bubbles carry more marks, helping you rank revision priorities.
Difficulty trend
Compare difficulty across recent years.
Time vs marks
Compare marks with suggested time allocation to plan exam pacing.
Paper 11: Hardware
0.50 m/minPaper 11: Systems,
0.82 m/minPaper 11: Databases
0.84 m/minPaper 21: Basic Alg
0.63 m/minPaper 21: Design Pa
0.62 m/minPaper 21: Advanced
0.63 m/minTotal marks
134
Total time
199 min
Avg pace
0.67
Cumulative marks ladder
The line is your running mark total question by question; dashed lines are the estimated grade cut-offs. See which question the line crosses your target grade at, so you know how far you must answer cleanly and which questions decide a band.
Next-year prediction
Topics worth watching next year, with the reason shown directly below each bar.
Object-Oriented Programming (OOP) representation
90%90%
A-level Logic Gates & Karnaugh Maps (A2 crossover)
85%85%
Overall Difficulty Verdict
This exam series presents a solid, well-rounded challenge. Paper 11 remains heavily content-focused, demanding granular knowledge of systems and physical hardware details (such as flash memory transistor and gate operations), whereas Paper 21 moves away from simple syntax recall towards architectural algorithm design, with high-weighting questions on file streaming, structure charts, and multi-step logic algorithms.
Where the Marks Are
The marks are distributed across key architectural blocks:
Analysis is paraphrased for study purposes. Always verify against the official examiner report and mark scheme.