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Python Institute PCAD-31-02 exam dumps - Python Institute Certified Associate Data Analyst with Python (PCAD-31-02)
- Exam Code: PCAD-31-02
- Exam Name: Python Institute Certified Associate Data Analyst with Python (PCAD-31-02)
- Updated: Oct 11, 2026 Q & A: 146 Questions and Answers
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Python Institute PCAD-31-02 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Data Acquisition and Pre-Processing | 29.2% | |
| Exploratory Data Analysis | ||
| Statistical Methods and Modeling | ||
| SQL and Data Management | ||
| Data Visualization and Communication |
Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions:
Question #1
Which operation would most efficiently apply element-wise multiplication to two NumPy arrays of equal size?
- A. array1 * array2
- B. array1.dot(array2)
- C. numpy.outer()
- D. numpy.matrix()
Correct Answer: A 🗳️
Question #2
Which chart types are commonly used to represent relationships between two numerical variables in Python-based visualizations?
(choose two)
Response:
- A. Histogram
- B. Scatter plot
- C. Heatmap
- D. Line chart
Correct Answer: B,C 🗳️
Question #3
What is a key advantage of using the Parquet file format over CSV in large-scale data pipelines?
- A. Parquet stores data in plain text, making it human-readable
- B. Parquet files can only be used with Excel
- C. Parquet supports schema evolution and columnar storage
- D. Parquet offers row-based compression
Correct Answer: C 🗳️
Question #4
Which practices are typically part of the data integration process?
(Choose two)
- A. Schema alignment
- B. Data encryption
- C. Neural network training
- D. Format standardization
Correct Answer: A,D 🗳️
Question #5
Which Python library is most commonly used to establish a connection to a SQLite database and perform SQL operations?
- A. sqlite3
- B. sqlalchemy
- C. psycopg2
- D. pymysql
Correct Answer: A 🗳️
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