IB Computer Science HL · 2027 specimen
Unit 4: Machine learning
6 past paper questions from 1 papers across 1 exam session. See what repeats, then practise the same skills with AI marking.
HL archive · from 2027
Unit 4: Machine learning
Latest exam session: Specimen 2027
- questions
- 6
- questions
- papers
- 1
- papers
- exam session
- 1
- exam session
- micro-topics
- 6
Topics in Unit 4: Machine learning
In syllabus order. The ring is the share of the marks each one carries.
4.1
Machine learning fundamentals
13% of marks2 of the 15 marks across the 2 Computer Science HL papers analysed (13%) were on this topic. A past-paper pattern, not a guarantee for your next paper. · 1 question
4.2
Data preprocessing
7% of marks1 of the 15 marks across the 2 Computer Science HL papers analysed (7%) were on this topic. A past-paper pattern, not a guarantee for your next paper. · 1 question
4.3
Machine learning approaches
47% of marks7 of the 15 marks across the 2 Computer Science HL papers analysed (47%) were on this topic. A past-paper pattern, not a guarantee for your next paper. · 3 questions
4.4
Ethical considerations
33% of marks5 of the 15 marks across the 2 Computer Science HL papers analysed (33%) were on this topic. A past-paper pattern, not a guarantee for your next paper. · 1 question
Exam pattern
How often each micro-topic has been examined, year by year. Each label is explained under the grid.
Does it repeat?
Top 4 of 6 micro-topics for the next sitting. Numbers are questions per year.
fewermore
| Micro-topic | 2027 |
|---|---|
| 1CNNs, 2027: 1 question | |
| 1Data cleaning, 2027: 1 question | |
| 1Hardware for machine learning, 2027: 1 question | |
| 1Hyperparameter tuning, 2027: 1 question |
2 more micro-topics with a free account
- Frequently testedin at least a quarter of all papers, and still appearing in the last two years
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Questions on Unit 4: Machine learning, by exam session
Which papers asked about Unit 4: Machine learning, and which question numbers. Open a paper to see them highlighted.
Specimen 2027
1 question across 1 paper
Every Unit 4: Machine learning question, unlocked
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Frequently asked questions
Short answers about this page.
Which Computer Science HL exam sessions are covered for Unit 4: Machine learning?
1 exam session from 2027, the latest Specimen 2027. Every Paper 1 in every timezone is read and classified in full, which gives 1 paper in this archive.
Which Unit 4: Machine learning topic comes up most?
CNNs (4.3.9): in 50% of papers, last seen Spec 27 P1. Usually "write down / state", worth about 1 marks in a paper that includes it.
Can I see the original question and mark scheme?
No. The wording belongs to the IB. You get the citation, the marks, the command term and the skill tested, plus our own matched practice questions with worked answers and AI marking.
What do "banker", "due" and "rising" mean?
Banker: examined in at least one sitting in four and still appearing. Due: regular before, but absent for the last two exam sessions. Rising: clearly more common in the last two years. Our classification of real papers, not an IB statistic.
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