Python Institute Python Institute Certification PCAD-31-02

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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 operation would most efficiently apply element-wise multiplication to two NumPy arrays of equal size?

A) numpy.matrix()
B) array1.dot(array2)
C) array1 * array2
D) numpy.outer()

2. Which of the following improves the readability of a spreadsheet used for collaborative data analysis?

A) Adding freeze panes to lock header rows
B) Removing gridlines from all sheets
C) Converting numeric values into images
D) Using colored fonts to highlight every cell

3. What may occur if a model is evaluated using the same data it was trained on?

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

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

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

5. What is the function of the melt() operation in Pandas when reshaping wide-format data?

A) Sorts the DataFrame based on a column
B) Combines multiple DataFrames
C) Converts column values into rows
D) Transposes the DataFrame

Solutions: