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Last Updated: Oct 17, 2026
No. of Questions: 146 Questions & Answers with Testing Engine
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Python Institute PCAD-31-02 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| SQL and Database Integration | 10% | - Relational database concepts
|
| Data Acquisition and Preprocessing | 30% | - Data preparation with Pandas and NumPy
|
| Data Visualization and Communication | 15% | - Visualization principles and best practices
|
| Data Modeling and Machine Learning Basics | 20% | - Model performance and optimization
|
| Data Exploration and Statistical Analysis | 25% | - Descriptive statistics
|
Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions:
Which practices are typically part of the data integration process?
(Choose two)
- A. Data encryption
- B. Schema alignment
- C. Format standardization
- D. Neural network training
Correct Answer: B,C 🗳️
What is the function of the melt() operation in Pandas when reshaping wide-format data?
- A. Converts column values into rows
- B. Transposes the DataFrame
- C. Sorts the DataFrame based on a column
- D. Combines multiple DataFrames
Correct Answer: A 🗳️
What is the primary advantage of using web scraping as a data collection method in business analytics?
- A. It guarantees real-time data accuracy
- B. It eliminates the need for data cleaning
- C. It ensures compliance with privacy laws
- D. It allows automation of data collection from public sources
Correct Answer: D 🗳️
Which approaches help tailor data visualizations for non-technical stakeholders?
(Choose two)
- A. Use raw code outputs for clarity
- B. Add context through narrative or titles
- C. Use jargon-rich annotations
- D. Focus on trend and summary metrics
Correct Answer: A,D 🗳️
Why is it important to use a test dataset separate from the training dataset when evaluating a machine learning model?
- A. To reduce the number of iterations during training
- B. To optimize the model's training accuracy
- C. To evaluate the model's performance on unseen data
- D. To ensure the loss function is minimized
Correct Answer: C 🗳️
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