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

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

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

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

3. What is the primary advantage of using web scraping as a data collection method in business analytics?

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

4. What is a key assumption of linear regression that distinguishes it from logistic regression?

A) Output values must be binary
B) Predictors must be independent
C) The relationship between predictors and the outcome is linear
D) The target variable is unordered categorical

5. What is the correct SQL statement to permanently remove a table named customers from a database?

A) DELETE TABLE customers;
B) TRUNCATE TABLE customers;
C) DROP TABLE customers;
D) REMOVE TABLE customers;

Solutions: