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

2. Which Python library is most commonly used to establish a connection to a SQLite database and perform SQL operations?

A) sqlite3
B) psycopg2
C) sqlalchemy
D) pymysql

3. Which SQL clause is most appropriate when you need to filter records that meet a specific condition during data retrieval in an analytics pipeline?

A) ORDER BY
B) GROUP BY
C) HAVING
D) WHERE

4. Which of the following libraries is specifically optimized for high-performance numerical computation with multi-dimensional arrays in Python?

A) seaborn
B) matplotlib
C) pandas
D) NumPy

5. Which actions are considered part of basic data validation tasks in Python using Pandas?
(Choose two)

A) Sorting the data frame by index
B) Checking for duplicate rows
C) Confirming numeric columns contain only integers
D) Replacing NULL values with placeholders

Solutions: