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Python Institute PCAD-31-02 Exam Syllabus Topics:

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

>> Python Institute PCAD-31-02 New Study Materials <<

Types Of Python Institute PCAD-31-02 Exam Practice Test Questions

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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions (Q123-Q128):

NEW QUESTION # 123
What is the main reason to remove duplicate records before performing analysis?

A. It avoids converting data to JSON format
B. It helps increase sample size
C. It reduces redundancy that can skew statistical metrics
D. It ensures training data is intentionally overfitted

Answer: C

NEW QUESTION # 124
Which of the following practices contributes most to making Python scripts modular and maintainable?

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

Answer: A

NEW QUESTION # 125
What is the primary role of the pandas library in the Python data science ecosystem?

A. Reducing execution time of compiled code
B. Performing statistical tests
C. Manipulating labeled data structures
D. Visualizing large datasets

Answer: C

NEW QUESTION # 126
Which of the following are true characteristics of bootstrapping in statistics?
(Choose two)

A. It uses random sampling with replacement
B. It requires a large population sample
C. It enables confidence interval estimation
D. It assumes a normal distribution

Answer: A,C

NEW QUESTION # 127
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 = ?", (user_id,))
C. cursor.execute("SELECT * FROM users WHERE id = ?", user_id)
D. cursor.execute("SELECT * FROM users WHERE id = ':id'", {'id': user_id})

Answer: B

NEW QUESTION # 128
......

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