Design Pattern MCQ Questions & Answers

Design Pattern MCQs : This section focuses on "Basics" of Design Pattern. These Multiple Choice Questions (MCQ) should be practiced to improve the Design Pattern skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations.

1. ___________ represent the best practices used by experienced object-oriented software developers.

A. EB2
B. IMS
C. Design Patterns
D. JCL

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2. GOF stands for ?

A. Gamma of four
B. Gang of four
C. Gang of helm
D. Gamma of helm

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3. Design patterns can be classified in _______ categories.

A. 1
B. 2
C. 3
D. 4

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4. Which design patterns are specifically concerned with communication between objects?

A. Creational Patterns
B. Structural Patterns
C. Behavioral Patterns
D. J2EE Patterns

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5. Which pattern are identified by Sun Java Center?

A. Factory pattern
B. Abstract Factory pattern
C. Behavioral Patterns
D. J2EE Patterns

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6. Factory pattern is one of most used design pattern in Java.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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7. In how many steps Singleton class in java created?

A. 1
B. 2
C. 3
D. 4

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8. _________ works as a bridge between two incompatible interfaces.

A. Prototype pattern
B. Adapter pattern
C. Bridge pattern
D. Filter pattern

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9. Filter pattern also known as?

A. Adapter pattern
B. Composite pattern
C. Filter pattern
D. Decorator pattern

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10. Can we create a clone of a singleton object?

A. Yes
B. No
C. Can be yes or no
D. Can not say

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