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Python Institute PCAD-31-02 Exam Syllabus Topics:

Section	Weight	Objectives
Exploratory Data Analysis
SQL and Data Management
Data Visualization and Communication
Statistical Methods and Modeling
Data Acquisition and Pre-Processing	29.2%

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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions (Q37-Q42):

NEW QUESTION # 37
Which packages are most commonly used together in a data science workflow for data manipulation and visualization?
(Choose two)

A. Pygame
B. pandas
C. flask
D. NumPy

Answer: B,D

NEW QUESTION # 38
Which operations are valid and commonly used on Python lists during data transformation tasks?
(Choose two)

A. Append
B. Index-based iteration
C. Key-value mapping
D. Slicing

Answer: A,D

NEW QUESTION # 39
When working with relational databases in Python, what are key components required to establish and manage database connections?
(Choose all that apply)

A. Connection object to interface with the database
B. Cursor object for executing queries
C. Database driver or module (e.g., sqlite3)
D. Python's random module for generating keys

Answer: A,C

NEW QUESTION # 40
What may occur if a model is evaluated using the same data it was trained on?

A. Underfitting
B. Data leakage
C. Overgeneralization
D. Overfitting

Answer: D

NEW QUESTION # 41
What distinguishes structured data from unstructured data in the context of data modeling and storage?

A. Structured data cannot be stored in databases
B. Unstructured data contains only numeric values
C. Structured data follows a consistent schema or format
D. Unstructured data cannot be stored or analyzed

Answer: C

NEW QUESTION # 42
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