Python Institute PCAD-31-02 Questions & Answers - in .pdf
- Total Q&A: 146
- Update: Jun 03, 2026
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- Vendor: Python Institute
- Exam Code: PCAD-31-02
- Exam Name: Python Institute Certified Associate Data Analyst with Python (PCAD-31-02)
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- Update: Jun 03, 2026
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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions:
1. What is a major challenge in aggregating data from multiple sources?
Response:
A) Overfitting in predictive models
B) Excessive disk space usage
C) Duplicate records and format inconsistencies
D) Increased algorithmic complexity
2. Which technique is considered a primary defense against SQL injection when executing database queries from Python?
A) Closing the database cursor after each query
B) Escaping quotes manually in SQL strings
C) Using parameterized queries
D) Encrypting the database connection
3. What may occur if a model is evaluated using the same data it was trained on?
A) Overfitting
B) Data leakage
C) Overgeneralization
D) Underfitting
4. Which of the following best describes the purpose of the plt.subplot() function in Matplotlib?
A) It links Matplotlib with Seaborn's grid styling
B) It overlays multiple plots in the same figure without axes
C) It configures multiple plots in a grid layout within a single figure
D) It creates a 3D surface plot using pandas
5. Which of the following correctly demonstrates the use of parameterized queries using Python's sqlite3 module?
A) cursor.execute("SELECT * FROM users WHERE id = ?", user_id)
B) cursor.execute("SELECT * FROM users WHERE id = ':id'", {'id': user_id})
C) cursor.execute("SELECT * FROM users WHERE id = ?", (user_id,))
D) cursor.execute("SELECT * FROM users WHERE id = " + user_id)
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: C | Question # 3 Answer: A | Question # 4 Answer: C | Question # 5 Answer: C |
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