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Duplicate Code Quiz
DRY Refactoring Patterns
Question
1
of 5
1
What is the primary risk of duplicate code?
Bugs need fixing in multiple places
Increased memory usage
Slower execution time
Harder to version control
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2
Where should extracted validation logic typically be placed?
In a parent class
In a private method
In a separate utility class
Any of the above depending on context
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3
What pattern helps reduce duplication across classes?
Strategy Pattern
Singleton
Observer
Decorator
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4
What does DRY stand for in software development?
Don't Repeat Yourself
Do Repeat Yourself
Data Reuse Yield
Dynamic Resource Yield
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5
Which tool can help identify duplicate code?
Static analysis tools
Code coverage tools
Performance profilers
All of the above
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