Design Patterns in Programming Quiz

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GeneralProgrammingprogrammingcodesoftwarealgorithms
Design Patterns in Programming: a General level Programming quiz. Test your knowledge with 10 questions!
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Questions

Question 1
Which pattern ensures only one instance of a class exists?
A Singleton
B Observer
C Factory
D Builder
Question 2
Which pattern is for creating objects without specifying class?
A Adapter
B Decorator
C Factory
D Singleton
Question 3
What does the Observer pattern deal with?
A Event notification
B Database storage
C CPU cooling
D Web hosting
Question 4
Design patterns are considered?
A New errors
B Best practices
C Only for experts
D Hard requirements
Question 5
What is the Adapter pattern used for?
A Deleting code
B Speed testing
C Compatibility
D Adding colors

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