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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 SQL commands can be used to modify the contents of a table's data directly?
(Choose all that apply)

A) SELECT
B) UPDATE
C) DELETE
D) INSERT

2. Which techniques can be used to select a subset of rows and columns from a DataFrame using labels?
(Choose two)

A) df['col1', 'col2']
B) df.iloc[0:5, 'col2']
C) df.loc[:, 'col1']
D) df.loc[2:7, ['col1', 'col2']]

3. Which of the following statements correctly describe best practices when managing Python modules and packages in data analytics workflows?
(Choose two)

A) Use virtual environments to isolate project dependencies
B) Regularly update all packages using pip update all
C) Use PIP to install and uninstall third-party libraries as needed
D) Always install packages system-wide for accessibility

4. Which method is appropriate for combining two DataFrames based on a shared key column where non-matching rows should be excluded from the result?

A) append()
B) merge(..., how='inner')
C) concat()
D) join(..., how='outer')

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) REMOVE TABLE customers;
D) DROP TABLE customers;

Solutions: