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Python Institute PCAD-31-02 Exam Syllabus Topics:

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

1. Which technique is considered a primary defense against SQL injection when executing database queries from Python?

A) Escaping quotes manually in SQL strings
B) Encrypting the database connection
C) Using parameterized queries
D) Closing the database cursor after each query

2. Which of the following practices contributes most to making Python scripts modular and maintainable?

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

3. How would you extract the last three rows of a DataFrame df using position-based indexing?

A) df.loc[-3:]
B) df.tail(3)
C) df.iloc[-3:]
D) df[-3]

4. When fetching DATETIME values from a SQL database into Python, which Python data type is most appropriate for storing and manipulating these values?

A) time.struct_time
B) datetime.datetime
C) str
D) float

5. What is the primary difference between the == operator and the is operator in Python when used in a data pipeline?

A) == compares values for equality, while is checks for object identity
B) is checks value equality, while == checks for data type compatibility
C) is compares dictionary keys, while == compares keys and values
D) == checks identity, while is compares memory addresses

Solutions: