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MLT · Support vector machines

26 questions · 48 marks · 6 papers

Answer key

Indian Institute of Technology Madras

BS Degree Programme · Examination & Study Paper

Machine Learning Techniques

Support vector machines

Official Paper

Examination Instructions & Guidelines

Solve on notebook/paper first before checking solutions.
MCQ: Exactly 1 option is correct. Negative marking applies.
MSQ: One or more options correct. Select all to score.
NAT: Numerical response. No negative marking.
Scientific calculator allowed for all calculations.
Official answer key is sealed at the end of this sheet.

End Term · 31 Aug 2025 (FN)End Term

Q1MCQ2 Marks·Choose one option
Key ↓
1. A40
2. B60
3. C100
4. D1
Q2MSQ3 Marks·Choose all correct options
Asked 2 times Key ↓
1. A
2. B
3. C
4. D
Read the passage below, then answer Q3–Q4
Consider the datapoints (−2,−2) with label +1 and (2, 2) with label −1. A hard margin SVM is applied on this dataset. Answer the given subquestions:
Q3MCQ2 Marks·Choose one option
Key ↓
Which of the following is the decision boundary for the given dataset?
1. A
2. B
3. C
4. D
Q4NAT2 Marks·Write the number
Asked 2 times Key ↓
Your answer:

End Term · 31 Aug 2025 (AN)End Term

Q5MCQ2 Marks·Choose one option
Asked 2 times Key ↓
1. A
2. B
3. C
4. D
Q6MSQ3 Marks·Choose all correct options
Asked 2 times Key ↓
1. A
2. B
3. C
4. D
Q7MSQ4 Marks·Choose all correct options
Key ↓
Given a two-dimensional data set where points from class 1 are: {(−2, 3), (−1, 1)} and points from class 0 are: {(1, 3), (1, 4)}. Which of the following statements are true?
1. AThe given data points from classes 1 and 0 can be linearly separated using a hard-margin SVM.
2. BA perceptron model and a hard-margin SVM can give different decision boundary for this dataset.
3. CA soft-margin SVM would be a more robust choice than a hard-margin SVM for this dataset as the dataset is not linearly separable.
4. DThe width of the separation between the two supporting hyperplanes is 4.

End Term · 13 Apr 2025 (FN)End Term

Q8MSQ3 Marks·Choose all correct options
Asked 2 times Key ↓
1. A
2. B
3. C
4. D
5. E
Read the passage below, then answer Q9–Q10
Based on the above data, answer the given subquestions.
Q9MCQ2 Marks·Choose one option
Key ↓
1. AIt is a circle.
2. BIt is a straight line.
3. CIt is an ellipse.
4. DIt is a parabola.
Q10MSQ3 Marks·Choose all correct options
Asked 2 times Key ↓
Which of the following training data points are certainly not support vectors?
1. A
2. B
3. C
4. D

End Term · 13 Apr 2025 (AN)End Term

Q11MSQ3 Marks·Choose all correct options
Asked 2 times Key ↓
1. A
2. B
3. C
4. D
5. E
Q12NAT3 Marks·Write the number
Asked 2 times Key ↓
Your answer:

End Term · 22 Dec 2024 (FN)End Term

Q13MCQ3 Marks·Choose one option
Asked 2 times Key ↓
1. A
2. B
3. C
4. D
5. E
Q14MCQ2 Marks·Choose one option
Asked 2 times Key ↓
If we remove all the non-support vectors from the dataset, what will be the impact on the model using SVM algorithm?
1. AModel will overfit.
2. BThe model will not be changed.
3. CModel will underfit.
4. DAccuracy of the model will increase.
Read the passage below, then answer Q15–Q19
Q15NAT0.5 Marks·Write the number
Asked 2 times Key ↓
Your answer:
Q16NAT0.5 Marks·Write the number
Asked 2 times Key ↓
Your answer:
Q17NAT0.5 Marks·Write the number
Asked 2 times Key ↓
Your answer:
Q18NAT0.5 Marks·Write the number
Asked 2 times Key ↓
Your answer:
Q19MSQ1 Mark·Choose all correct options
Asked 2 times Key ↓
Which of the following is correct ?
1. A
2. B
3. C
4. D

End Term · 22 Dec 2024 (AN)End Term

Q20MCQ3 Marks·Choose one option
Asked 2 times Key ↓
1. A
2. B
3. C
4. D
5. E
Q21MCQ2 Marks·Choose one option
Asked 2 times Key ↓
If we remove all the non-support vectors from the dataset, what will be the impact on the model using SVM algorithm?
1. AModel will overfit.
2. BThe model will not be changed.
3. CModel will underfit.
4. DAccuracy of the model will increase.
Read the passage below, then answer Q22–Q26
Q22NAT0.5 Marks·Write the number
Asked 2 times Key ↓
Your answer:
Q23NAT0.5 Marks·Write the number
Asked 2 times Key ↓
Your answer:
Q24NAT0.5 Marks·Write the number
Asked 2 times Key ↓
Your answer:
Q25NAT0.5 Marks·Write the number
Asked 2 times Key ↓
Your answer:
Q26MSQ1 Mark·Choose all correct options
Asked 2 times Key ↓
Which of the following is correct ?
1. A
2. B
3. C
4. D

Official Key

Master Answer Key & Explanations

Official answer keys from IIT Madras BS past papers. Click any question to review.

Reveal Key

Q1C

Q2B, D

Q3B

Q45.64 to 5.68

Q5B

Q6A, D

Q7A, B

Q8B, D, E

Q9C

Q10A, C

Q11B, D, E

Q121

Q13B

Q14B

Q151

Q160

Q170

Q182

Q19A, B

Q20A

Q21B

Q221

Q230

Q240

Q252

Q26A, B

Questions and answer keys are reproduced from the official IIT Madras BS papers. Topics and repeated question types are BTechi’s own grouping. BTechi is not affiliated with IIT Madras.