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

1. Which practices enhance both readability and professionalism in spreadsheet formatting?
(Choose two)

A) Using uniform date formats across columns
B) Applying consistent font and cell styling
C) Aligning column headers to the left
D) Centering all data regardless of type

2. 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 allows automation of data collection from public sources
C) It eliminates the need for data cleaning
D) It ensures compliance with privacy laws

3. Which of the following would best validate the uniqueness of a primary key in a Pandas DataFrame?

A) df['id'].nunique()
B) df['id'].fillna()
C) df['id'].duplicated().any()
D) df['id'].isnull().sum()

4. Which Python library is most commonly used to establish a connection to a SQLite database and perform SQL operations?

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

5. Which practices are considered part of professional Python scripting standards?
(Choose two)

A) Including in-line comments and docstrings
B) Avoiding error handling to keep code clean
C) Using consistent indentation and naming conventions
D) Avoiding use of modules and libraries

Solutions: