Refactoring Code Strategies Quiz

1. What is code refactoring?

• Code refactoring is changing the programming language used in a project to modernize the code.
• Code refactoring is the process of restructuring existing code without changing its external behavior to improve its maintainability, readability, and understandability.
• Code refactoring is a technique used to compile code faster and optimize performance.
• Code refactoring is rewriting entire software from scratch to add new features.

2. What are the primary goals of code refactoring?

• Remove all comments and documentation in the code
• Make the code harder to read for future developers
• Increase the number of lines of code in the project
• Enhance code maintainability and quality while keeping tests passing

3. What is the `Composing Method` technique in code refactoring?

• The `Composing Method` technique is about merging multiple classes into one large class.
• The `Composing Method` technique deals with removing all comments from the code for clarity.
• The `Composing Method` technique involves breaking down large, complex methods into smaller, more manageable pieces using techniques like Extraction and Inline.
• The `Composing Method` technique focuses on rewriting all methods completely for better performance.

4. What is Extract Method refactoring?

• Extract Method refactoring replaces all functions with a single complex method to reduce confusion.
• Extract Method refactoring erases redundant methods to streamline the performance of poorly written code.
• Extract Method refactoring is used to combine several methods into one large method to simplify the code structure.
• Extract Method refactoring involves breaking down complex code blocks into smaller, more manageable methods to improve readability and maintainability.

5. What is Inline refactoring?

• Inline refactoring requires rewriting entire classes from scratch.
• Inline refactoring is about creating new methods to improve code structure.
• Inline refactoring involves identifying and removing unnecessary methods by replacing method calls with actual code.
• Inline refactoring focuses on changing data types for optimization.

6. What is the Pull-Up/Push-Down method in code refactoring?

• The Pull-Up/Push-Down method involves moving common behavior in classes.
• The Pull-Up/Push-Down method transforms methods into global functions.
• The Pull-Up/Push-Down method is about merging unrelated classes into one.
• The Pull-Up/Push-Down method focuses on deleting redundant code entirely.

7. What is the Red-Green-Refactor method?

• The Red-Green-Refactor method is a three-step approach to test-driven development: write a failing test, write code to pass the test, and then refactor.
• The Red-Green-Refactor method involves reviewing the code only after all features have been implemented.
• The Red-Green-Refactor method is a strategy for optimizing code performance without regard for testing.
• The Red-Green-Refactor method focuses on creating comprehensive documentation before coding begins.

8. What is Branching by Abstraction in code refactoring?

• Branching by Abstraction reduces unnecessary duplications in code by extracting subclasses, collapsing hierarchy, and eliminating redundant code.
• Branching by Abstraction is the practice of creating independent modules that do not share any code.
• Branching by Abstraction involves merging all classes into one to simplify code management.
• Branching by Abstraction means using the same function across different classes without variations.

9. What is Preparatory refactoring?

• Preparatory refactoring focuses solely on aesthetic changes to the codebase.
• Preparatory refactoring involves making changes to the code as soon as they are noticed to avoid future technical debt.
• Preparatory refactoring is the process of rewriting code in a new programming language.
• Preparatory refactoring increases code complexity without improving functionality.

10. What is the purpose of setting clear goals in code refactoring?

• Setting clear goals increases the size of the codebase unnecessarily.
• Setting clear goals helps identify areas for improvement in the code.
• Setting clear goals slows down the refactoring process.
• Setting clear goals prevents developers from making changes to the code.

11. Why is it important to run test coverage during code refactoring?

• Running test coverage improves the performance of the code.
• Running test coverage only checks the test cases written.
• Running test coverage ensures the code still functions correctly after changes.
• Running test coverage eliminates the need for documentation.

12. What is the best practice of making small changes in code refactoring?

• Making random changes leads to better performance.
• Making large changes reduces complexity.
• Making frequent changes hinders debugging.
• Making small changes improves code clarity.

13. What is the importance of understanding the code before starting the refactoring process?

• Understanding the code allows for more bugs to be introduced.
• Understanding the code helps identify potential issues and areas for improvement.
• Understanding the code makes the refactoring process harder.
• Understanding the code is unnecessary as all changes are trivial.

14. What is the purpose of collaborating with the QA team during code refactoring?

• Collaborating with the QA team limits the changes that can be made in code.
• Collaborating with the QA team ensures thorough testing of refactored code.
• Collaborating with the QA team reduces the amount of code written.
• Collaborating with the QA team speeds up the coding process significantly.

15. What is the role of automation in code refactoring?

• Automation creates entirely new codebases, which increases complexity.
• Automation in code refactoring helps streamline processes and reduce errors.
• Automation eliminates the need for testing and manual reviews during changes.
• Automation slows down the refactoring process by adding unnecessary steps.

16. What is the benefit of prioritizing code deduplication in refactoring?

• Reduces redundant code, improves modularity, and enhances readability.
• Requires a complete rewrite of the existing code.
• Increases complexity and makes code harder to maintain.
• Guarantees that all errors will be eliminated immediately.

17. What is the purpose of simplifying methods in code refactoring?

• Complicating the code for better performance.
• Making code clearer and easier to read.
• Hiding functionality behind complex methods.
• Increasing the file size unnecessarily.

18. What is Moving Features Between Objects in code refactoring?

• Moving features includes deleting classes for simplicity.
• Moving features refers to optimizing existing methods.
• Moving features means duplicating code across several classes.
• Moving features involves transferring functionality between classes.

19. What is the benefit of using standard library functions in code refactoring?

• Slows down execution speed
• Complicates the code structure
• Increases application size
• Improves code readability

20. What is the importance of following coding conventions in code refactoring?

• Following coding conventions increases the complexity of the code unnecessarily.
• Ignoring coding conventions helps in creating unique code styles without restrictions.
• Coding conventions are irrelevant in code refactoring as they don`t impact functionality.
• Following coding conventions ensures consistency in the codebase, making it easier to understand and maintain.

21. What is the role of time planning in code refactoring?

• Time planning in refactoring complicates the coding process and increases bugs.
• Time planning in refactoring ensures clear task prioritization and resource allocation.
• Time planning in refactoring leads to slower code execution and poor performance.
• Time planning in refactoring removes the need for code review altogether.

22. What is the purpose of setting defined objectives in code refactoring?

• Setting clear goals in code refactoring helps focus improvement efforts.
• Defining goals in code refactoring increases overall code size.
• Establishing goals in code refactoring leads to undefined outcomes.
• Setting goals in code refactoring creates more complex code.

23. What is the benefit of reducing code duplication in refactoring?

• Slows down the development process significantly.
• Increases code complexity and difficulty.
• Makes code less modular and harder to maintain.
• Reduces redundancy and improves readability.

24. What is the importance of ensuring that the code being refactored has a comprehensive test suite?

• It removes the need for documentation.
• It helps ensure code behavior remains stable.
• It allows for more complex coding styles.
• It guarantees faster code execution.

25. What is the purpose of troubleshooting and debugging separately during refactoring?

• Troubleshooting and debugging together improves code structure and performance.
• Troubleshooting and debugging separately during refactoring helps identify and fix issues without affecting overall functionality.
• Troubleshooting and debugging at the same time reduces the time spent on refactoring.
• Troubleshooting during refactoring ensures all errors are fixed instantly.

26. What is the role of automation in streamlining the refactoring process?

• Automation makes the refactoring process redundant, as manual changes suffice for improvements.
• Automation complicates the refactoring process by adding unnecessary steps and delays.
• Automation in streamlining the refactoring process reduces manual errors, improves efficiency, and ensures consistent application of refactoring techniques.
• Automation hinders the refactoring process by increasing the reliance on manual coding practices.

27. What is the benefit of using refactoring techniques like Extract Method and Inline?

• Using refactoring techniques has no significant impact on the overall quality of the code.
• Using refactoring techniques only increases code length and size unnecessarily.
• Using refactoring techniques creates more complexity and confusion in the code.
• Using refactoring techniques like Extract Method and Inline improves code readability, reduces complexity, and makes the logic easier to understand.

28. What is the purpose of refactoring by abstraction in large codebases?

• Refactoring by abstraction increases code complexity and makes it harder to read.
• Refactoring by abstraction eliminates all comments and documentation in the code.
• Refactoring by abstraction only focuses on improving performance without affecting maintainability.
• Refactoring by abstraction reduces unnecessary duplications, improves code modularity, and enhances overall readability.

29. What is the role of understanding the codebase before starting the refactoring process?

• Understanding the codebase helps identify key areas for improvement.
• Understanding the codebase is unnecessary for refactoring success.
• Ignoring the codebase allows for faster refactoring processes.
• Knowing nothing about the code helps in making changes efficiently.

30. What is the importance of running test coverage during code refactoring?

• Running test coverage during refactoring ensures code behavior consistency and detects bugs.
• Running test coverage reduces the code`s execution time and improves performance.
• Running test coverage eliminates the need for further testing after refactoring.
• Running test coverage guarantees that the code will remain unmodified during refactoring.