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

1. Which method in a Python class is responsible for initializing the object's attributes at the time of creation?

A) __init__()
B) __main__()
C) __getattr__()
D) __str__()

2. Which data collection method is most appropriate when gathering opinions from a target audience at scale?

A) Sensor logs
B) Surveys
C) Web scraping
D) Transactional data

3. Which Python control structures are commonly used for data filtering and iterative operations in real-world analytics tasks?
(Choose two)

A) decorators
B) list comprehensions
C) while loops
D) match-case statements

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

5. What is the key difference between the .iloc[] and .loc[] accessors when working with Series or DataFrames?

A) .loc[] does not allow slicing
B) .iloc[] is position-based, while .loc[] is label-based
C) .loc[] can only be used on Series
D) .iloc[] allows label-based selection

Solutions: