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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. When working with relational databases in Python, what are key components required to establish and manage database connections?
(Choose all that apply)

A) Database driver or module (e.g., sqlite3)
B) Cursor object for executing queries
C) Connection object to interface with the database
D) Python's random module for generating keys

2. Which type of regression is most appropriate when the response variable is categorical, such as predicting customer churn (Yes/No)?

A) Linear regression
B) Decision tree regression
C) Polynomial regression
D) Logistic regression

3. Which actions are valid techniques for handling erroneous categorical values in a dataset?
(Choose two)

A) Replacing inconsistent labels with a standardized value
B) Converting all values to integers
C) Removing rows with invalid labels
D) Normalizing using min-max scaling

4. What is the correct sequence to connect to a database and execute a query using the sqlite3 module in Python?

A) Connect → Commit → Execute → Close
B) Connect → Execute → Commit → Close
C) Execute → Connect → Commit → Close
D) Commit → Connect → Execute → Close

5. Which file format is most suitable for exchanging large tabular datasets with consistent column data types across systems?

A) .txt
B) .csv
C) .json
D) .xml

Solutions: