Software Design Patterns Interview Questions

Software Design Patterns interview questions

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Total Questions: 5

1. Which of the following is correct about Structural design patterns.

A. These design patterns are specifically concerned with communication between objects.

B. These design patterns provide a way to create objects while hiding the creation logic, rather than instantiating objects directly using new opreator.

C. These design patterns concern class and object composition. Concept of inheritance is used to compose interfaces and define ways to compose objects to obtain new functionalities.

D. None of the above.

Correct Answer is : These design patterns concern class and object composition. Concept of inheritance is used to compose interfaces and define ways to compose objects to obtain new functionalities.

2. In MVC pattern, View represents the visualization of the data that model contains.

A. FALSE

B. TRUE

Correct Answer is : TRUE

3. Which of the following pattern is used to restore state of an object to a previous state?

A. Iterator Pattern

B. Mediator Pattern

C. Memento Pattern

D. Observer Pattern

Correct Answer is : Memento Pattern

4. In which of the following pattern, a class behavior changes based on its state?

A. State Pattern

B. Null Object Pattern

C. Strategy Pattern

D. Template Pattern

Correct Answer is : State Pattern

5. Which of the following pattern is used when we want to pass data with multiple attributes in one shot from client to server?

A. Factory Pattern

B. Abstract Factory Pattern

C. Singleton Pattern

D. Transfer Object Pattern

Correct Answer is : Transfer Object Pattern

Software Design Patterns interview questions