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Python Institute PCAD-31-02 Exam Syllabus Topics:

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

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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions (Q140-Q145):

NEW QUESTION # 140
Which storage system is best suited for storing and retrieving large volumes of unstructured data, such as images or logs?

A. Data cubes
B. Relational databases
C. Object storage systems
D. In-memory databases

Answer: C

NEW QUESTION # 141
Which practices contribute to better exception handling in data pipelines involving file I/O and numerical computations?
(Choose two)

A. Using specific exception types like FileNotFoundError or ZeroDivisionError
B. Logging error messages for later inspection during failures
C. Catching all exceptions using a generic except: clause without specifying the error
D. Suppressing all error output using pass

Answer: B,D

NEW QUESTION # 142
Which actions are considered best practices when managing datasets in Python using pandas?
(Choose two)

A. Replace missing values with hardcoded zeros without analysis
B. Use .info() to understand dataset structure
C. Use .describe() for summary statistics
D. Always convert all columns to strings

Answer: B,C

NEW QUESTION # 143
What is the primary advantage of using web scraping as a data collection method in business analytics?

A. It ensures compliance with privacy laws
B. It allows automation of data collection from public sources
C. It guarantees real-time data accuracy
D. It eliminates the need for data cleaning

Answer: B

NEW QUESTION # 144
Which of the following exceptions would most likely be raised if a string is directly converted to an integer in Python?

A. RuntimeError
B. TypeError
C. IOError
D. ValueError

Answer: D

NEW QUESTION # 145
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