CAD FREE CAD Code Refactoring and Quality Questions and Answers 2

Question 1

Which refactoring technique involves replacing a complex conditional expression with a method that returns a boolean value?

Accepted Answer

Decompose Conditional

Answer

Extract Method

Answer

Inline Method

Answer

Replace Temp with Query

Question 2

What is the primary purpose of establishing a 'Definition of Done' for code quality in an Agile team?

Accepted Answer

To create a shared understanding of quality standards that must be met before work is considered complete

Answer

To assign blame when defects are found in production

Answer

To eliminate the need for code reviews

Answer

To reduce the number of user stories completed per sprint

Question 3

In the context of Agile development, what does 'technical debt' most accurately describe?

Accepted Answer

The implied cost of future rework caused by choosing an expedient solution over a better approach

Answer

The total cost of software licenses used by the development team

Answer

The amount of time spent on writing documentation

Answer

The budget allocated for infrastructure upgrades

Question 4

Which code quality metric measures the percentage of code executed during automated tests?

Accepted Answer

Code coverage

Answer

Cyclomatic complexity

Answer

Coupling

Answer

Cohesion

Question 5

What is the 'Strangler Fig' pattern used for in Agile refactoring?

Accepted Answer

Gradually replacing a legacy system by incrementally building new functionality around it

Answer

Removing all legacy code in a single sprint

Answer

Adding a wrapper class around every legacy module

Answer

Duplicating the entire codebase before making changes

Question 6

Why should refactoring be performed in small, incremental steps rather than large-scale rewrites?

Accepted Answer

To maintain a working system at all times and reduce the risk of introducing defects

Answer

To avoid the need for version control

Answer

To ensure only one developer works on the code at a time

Answer

To eliminate the need for automated testing