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Python Institute PCAD-31-02 Exam Syllabus Topics:

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

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Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) Sample Questions (Q22-Q27):

NEW QUESTION # 22
Which of the following would most likely be classified as unstructured data?

A. Collection of customer service audio recordings
B. Normalized employee database in PostgreSQL
C. Inventory levels in a spreadsheet
D. Product ID and price list in a CSV

Answer: A

NEW QUESTION # 23
What is the purpose of using df.loc[2:5, 'column1'] in a Pandas DataFrame?

A. Returns the entire DataFrame
B. Returns rows 2 through 5 in 'column1'
C. Returns rows 2 to 4 in 'column1'
D. Returns a new DataFrame excluding 'column1'

Answer: B

NEW QUESTION # 24
Which Pandas methods are commonly used to extract central tendency and dispersion insights from a DataFrame?
(Choose two)

A. sort_values()
B. pivot_table()
C. median()
D. var()

Answer: C,D

NEW QUESTION # 25
What is the primary reason for using parameterized queries instead of directly formatting SQL strings in Python?

A. To prevent SQL injection vulnerabilities
B. To reduce the number of SQL statements
C. To simplify data encryption
D. To allow dynamic table creation

Answer: A

NEW QUESTION # 26
Which SQL command should a data analyst use to modify existing records in a database table based on specific conditions?

A. UPDATE
B. SELECT
C. CREATE
D. INSERT

Answer: A

NEW QUESTION # 27
......

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