Behavioral patterns

Which of the following patterns lets you define a new operation on an object structure without changing the class of the objects?

Please select the best answer.

• Chain of Responsibility

• Visitor

• Strategy

• Mediator

Which of the following patterns allows an object to notify interested listeners of changes to its state?

Please select the best answer.

• Chain of Responsibility

• Command

• Iterator

• Observer

Which of the following patterns allows multiple objects an opportunity to process a request without guaranteeing that any of them must process it?

Please select the best answer.

• Chain of Responsibility

• Command

• Memento

• Mediator

Which of the following is an object pattern that encapsulates interchangeable algorithms in objects so the algorithm can vary independently of the classes that use it?

Please select the best answer.

• Chain of Responsibility

• Command

• Strategy

• Mediator

In which of the following pattern, a class behavior or its algorithm can be changed at run time?

• State Pattern

• New Object Pattern

• Strategy Pattern

• Template Pattern

Behavioral design patterns are patterns responsible for identifying common communication patterns between objects.

• true

• false

A behavioral design pattern is classified into ___ different types.

• 4

• 6

• 8

• 10

Which of the following is not a type of behavioural design pattern?

• Chain of Responsibility Method

• Abstract Method

• Command Method

• Iterator Method

Which of the following is not a type of behavioral design pattern?

• Iterator Method

• Mediator Method

• Functional Method

Which of the following is not a type of behavioral design pattern?

• Observer Method

• State Method

• Strategy Method

• Adapter Method