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MLP · Preprocessing, features & pipelines

10 questions · 25 marks · 3 papers

Answer key

Indian Institute of Technology Madras

BS Degree Programme · Examination & Study Paper

Machine Learning Practice

Preprocessing, features & pipelines

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

Q1MSQ3 Marks·Choose all correct options
Asked 2 times Key ↓
1. A
2. B
3. C
4. D
5. E
Q2MSQ2 Marks·Choose all correct options
Asked 2 times Key ↓
1. A
2. B
3. C
4. D
5. E

End Term · 31 Aug 2025 (AN)End Term

Q3MSQ3 Marks·Choose all correct options
Asked 2 times Key ↓
1. A
2. B
3. C
4. D
5. E
Q4MSQ2 Marks·Choose all correct options
Asked 2 times Key ↓
1. ASaves computation time by reusing results of expensive transformations when inputs and parameters have not changed.
2. BHelps speed up repeated runs of cross-validation involving the same transformation steps.
3. CReduces CPU usage by running transformations in parallel threads automatically.
4. DImproves efficiency in hyperparameter search by avoiding redundant computations in pipeline steps.
5. EGuarantees better generalization performance on the test set.

End Term · 22 Dec 2024 (AN)End Term

Q5MCQ2 Marks·Choose one option
Key ↓
1. A4
2. B5
3. C3
4. D6
Q6MCQ2 Marks·Choose one option
Key ↓
1. A[5, 6]
2. B[4, 5]
3. C[8, 6]
4. D[2, 3]
Q7MCQ3 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q8MCQ3 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
5. E
Q9MSQ2 Marks·Choose all correct options
Key ↓
Which of the following are techniques for dimensionality reduction?
1. APCA (Principal Component Analysis)
2. BStandardScaler
3. CLasso Regression
4. Dt-SNE (t-distributed Stochastic Neighbor Embedding)
Q10NAT3 Marks·Write the number
Key ↓
Your answer:

Official Key

Master Answer Key & Explanations

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

Reveal Key

Q1A, B

Q2A, B, D

Q3A, B

Q4A, B, D

Q5D

Q6C

Q7B

Q8A

Q9A, C, D

Q104

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.