What does the function word_stats usually return?

• Word statistics including counts and frequencies.
• Synonyms and antonyms of words.
• Examples of word usage in sentences.
• Word definitions and meanings.

If the input is "Dog dog DOG", how many unique words should the function return (case-insensitive)?

• 1
• 4
• 3
• 2

Why do we write test cases?

• We write test cases to verify software functionality, identify bugs, and ensure code changes do not introduce new issues.
• To reduce testing time
• To increase software complexity
• To improve code readability

What does “refactoring” mean in software development?

• Refactoring is the process of adding new features to existing code.
• Refactoring involves rewriting code from scratch to improve performance.
• Refactoring is the act of removing all comments from the code.
• Refactoring is the process of restructuring existing code to improve its quality without altering its functionality.

Which statement best captures the difference between Copilot-style tools and Agentic AI?

• Both Copilot-style tools and Agentic AI require user input to function.
• Copilot-style tools assist users; Agentic AI operates autonomously.
• Copilot-style tools operate autonomously; Agentic AI assists users.
• Copilot-style tools are fully autonomous; Agentic AI requires constant supervision.

In Python, what will be the output of the following code?

x = [1, 2, 3]

y = x

y.append(4)

print(x)

• [1, 2, 3, 4]
• [1, 2, 3, 4, 5]
• [4, 1, 2, 3]
• [1, 2, 3]

In databases, what is the main purpose of using normalization?

• The main purpose of using normalization is to reduce data redundancy and improve data integrity.
• To increase data duplication for faster access.
• To simplify database queries by merging tables.
• To enhance the visual representation of data in reports.

In machine learning, which situation indicates overfitting?

• The model performs poorly on both training and test data.
• The model performs well on test data but poorly on training data.
• The model has a balanced performance on both training and test data.
• The model performs well on training data but poorly on test data.

What is the primary benefit of using indexes in a database?

• Indexes improve the speed of data retrieval operations on a database table.

• Indexes increase the size of the database significantly.

• Indexes are primarily for data backup purposes.

• Indexes are used to enforce data integrity rules.

What is the main purpose of unit testing in software development?

• To test individual components for correctness before integration.

• To test the entire application as a whole.

• To ensure the software is user-friendly.

• To check the performance of the software under load.