Python Institute Certification PCAD-31-02

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

1. Which of the following is the most suitable data structure in Python for representing a tabular row with column names?

A) set
B) dictionary
C) tuple
D) list

2. Which two benefits are most closely associated with using object-oriented programming (OOP) in data analysis pipelines?
(Choose two)

A) Encourages code reuse through inheritance and modularity
B) Supports clearer abstraction by modeling real-world entities
C) Allows the use of lambda for procedural logic
D) Enables procedural programming only through decorators

3. What is the primary reason for using parameterized queries instead of directly formatting SQL strings in Python?

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

4. Why is it important to use a test dataset separate from the training dataset when evaluating a machine learning model?

A) To evaluate the model's performance on unseen data
B) To reduce the number of iterations during training
C) To optimize the model's training accuracy
D) To ensure the loss function is minimized

5. Which element is essential to justify a conclusion drawn from a dataset?

A) The use of color in plots
B) Logical reasoning and supported metrics
C) The origin of the dataset
D) File format of the source data

Solutions: