Q 1 - Which of the following is correct about Creational 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.

Q 2 - Which of the following describes the Prototype pattern correctly?

A - This pattern builds a complex object using simple objects and using a step by step approach.

B - This pattern refers to creating duplicate object while keeping performance in mind.

C - This pattern works as a bridge between two incompatible interfaces.

D - This pattern is used when we need to decouple an abstraction from its implementation so that the two can vary independently.

Q 3 - Which of the following pattern is used when we need to decouple an abstraction from its implementation so that the two can vary independently?

A - Bridge Pattern

B - Adapter Pattern

C - Prototype Pattern

D - Filter Pattern

Q 4 - Which of the following pattern hides the complexities of the system and provides an interface to the client using which the client can access the system?

A - Composite Pattern

B - Facade Pattern

C - Flyweight Pattern

D - Decorator Pattern

Q 5 - Which of the following describes the Mediator pattern correctly?

A - This pattern is used to get a way to access the elements of a collection object in sequential manner without any need to know its underlying representation.

B - This pattern is used to reduce communication complexity between multiple objects or classes.

C - This pattern is used to restore state of an object to a previous state.

D - This pattern is used when there is one-to-many relationship between objects such as if one object is modified, its depenedent objects are to be notified automatically.

Q 6 - In which of the following pattern, an abstract class exposes defined way(s)/template(s) to execute its methods?

A - State Pattern

B - Null Object Pattern

C - Strategy Pattern

D - Template Pattern

Q 7 - Which of the following pattern is used to to decouple presentation tier and business tier?

A - Visitor Pattern

B - MVC Pattern

C - Business Delegate Pattern

D - Composite Entity Pattern

Q 8 - Which of the following pattern involves a single class which is responsible to create an object while making sure that only single object gets created?

A - Factory Pattern

B - Abstract Factory Pattern

C - Singleton Pattern

D - Transfer Object Pattern

Q 9 - Which type of design patterns are specifically concerned with communication between objects?

A - Creational Design Patterns

B - Structural Design Patterns

C - Behavioral Design Pattern

D - J2EE Design Patterns

Q 10 - Which of the following is the correct list of entities of Business Delegate pattern?

A - Business Delegate, LookUp Service, Business Service

B - Client, Business Delegate, LookUp Service, Business Service

C - Client, LookUp Service, Business Service

D - Client, Business Delegate, Business Service