Python Institute Certified Associate Data Analyst with Python (PCAD-31-02): PCAD-31-02 Exam
"Python Institute Certified Associate Data Analyst with Python (PCAD-31-02)", also known as PCAD-31-02 exam, is a Python Institute Certification. With the complete collection of questions and answers, PrepAwayPDF has assembled to take you through 146 Q&As to your PCAD-31-02 Exam preparation. In the PCAD-31-02 exam resources, you will cover every field and category in Python Institute Certification Certification helping to ready you for your successful Python Institute Certification.
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Python Institute PCAD-31-02 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Data Visualization and Communication | ||
| SQL and Data Management | ||
| Exploratory Data Analysis | ||
| Data Acquisition and Pre-Processing | 29.2% | |
| Statistical Methods and Modeling |
Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions:
Which of the following libraries is specifically optimized for high-performance numerical computation with multi-dimensional arrays in Python?
- A. matplotlib
- B. seaborn
- C. NumPy
- D. pandas
Correct Answer: C 🗳️
Which method is typically used in Pandas to check if a column contains only values within an expected range?
- A. df.sort_values()
- B. df.isin()
- C. df.clip()
- D. df.sample()
Correct Answer: B 🗳️
What is the outcome of the following code?
data = [5, 10, 15]
result = [x**2 for x in data if x > 5]
print(result)
- A. [10, 15]
- B. [25, 100, 225]
- C. [100, 225]
- D. [25, 100]
Correct Answer: C 🗳️
What is a key advantage of using the Parquet file format over CSV in large-scale data pipelines?
- A. Parquet files can only be used with Excel
- B. Parquet stores data in plain text, making it human-readable
- C. Parquet supports schema evolution and columnar storage
- D. Parquet offers row-based compression
Correct Answer: C 🗳️
Which practices help ensure secure and effective execution of SQL queries in Python scripts?
(Choose all that apply)
- A. Wrapping SQL commands in try-except blocks
- B. Using string formatting to build SQL queries dynamically
- C. Employing parameterized statements for user-supplied data
- D. Using string concatenation to insert variables into SQL
Correct Answer: A,C 🗳️
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