Python Institute Updated PCAD-31-02 Testkings: Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) - PassExamDumps Valuable Latest Test Cram for you

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Python Institute PCAD-31-02 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Exploratory Data Analysis
Topic 2: Data Acquisition and Pre-Processing	29.2%
Topic 3: Statistical Methods and Modeling
Topic 4: SQL and Data Management
Topic 5: Data Visualization and Communication

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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions (Q40-Q45):

NEW QUESTION # 40
Which of the following practices contributes most to making Python scripts modular and maintainable?

A. Using global variables freely
B. Structuring code with reusable functions and modules
C. Hard-coding file paths in every function
D. Writing all logic in the global scope

Answer: B

NEW QUESTION # 41
Which Python library is most commonly used to establish a connection to a SQLite database and perform SQL operations?

A. pymysql
B. sqlalchemy
C. psycopg2
D. sqlite3

Answer: D

NEW QUESTION # 42
What is a key advantage of using the Parquet file format over CSV in large-scale data pipelines?

A. Parquet supports schema evolution and columnar storage
B. Parquet stores data in plain text, making it human-readable
C. Parquet files can only be used with Excel
D. Parquet offers row-based compression

Answer: A

NEW QUESTION # 43
When analyzing a sales dataset using Pandas, which of the following techniques help extract key insights by grouping and summarizing the data?
(Choose two)

A. Using groupby() to compute total sales per region
B. Applying agg() to calculate multiple metrics like mean and max
C. Using rename() to change column headers
D. Using fillna() to replace missing product prices

Answer: A,B

NEW QUESTION # 44
Which of the following statements correctly describe best practices when managing Python modules and packages in data analytics workflows?
(Choose two)

A. Always install packages system-wide for accessibility
B. Regularly update all packages using pip update all
C. Use virtual environments to isolate project dependencies
D. Use PIP to install and uninstall third-party libraries as needed

Answer: C,D

NEW QUESTION # 45
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