CAD FREE CAD Code Refactoring and Quality Questions and Answers 3

Question 1

Which Agile practice involves the entire team reviewing the codebase together to identify quality improvements?

Accepted Answer

Mob programming or group code review

Answer

Mob programming and group code reviews bring the whole team together to examine code, share knowledge, and collaboratively identify quality improvements.

Question 2

What does the 'Boy Scout Rule' recommend regarding code quality?

Accepted Answer

Always leave the code cleaner than you found it

Answer

The Boy Scout Rule encourages developers to make small improvements to code quality whenever they work in an area, gradually improving the overall codebase.

Question 3

Which refactoring technique is most appropriate when a method has grown too long and contains multiple distinct responsibilities?

Accepted Answer

Extract Method

Answer

Extract Method pulls out cohesive blocks of code into separate, well-named methods, reducing the length and complexity of the original method.

Question 4

What is the main risk of refactoring without adequate test coverage?

Accepted Answer

Introducing regressions that go undetected because there are no tests to catch behavioral changes

Answer

Without sufficient tests, refactoring changes may alter the system's behavior in unintended ways that remain undetected until they cause problems in production.

Question 5

In continuous integration, how does automated static code analysis contribute to code quality?

Accepted Answer

It detects potential bugs, code smells, and style violations early in the development cycle before code is merged

Answer

Static analysis tools scan code for potential issues during the CI pipeline, catching problems before they reach production.

(CAD) Certified Agile Developer Practice Test

(CAD) Certified Agile Developer Practice Test

CAD FREE CAD Code Refactoring and Quality Questions and Answers 3