Which pattern is used When an object wants to publish information and many objects will need to receive that information.

Related MCQs

• Which Design Pattern should you use when an application uses a large number of objects and the storage costs are high because of the sheer quantity of objects.
• In the Publish-Subscribe messaging model, the subscribers register themselves in a topic and are notified when new messages arrive to the topic. Which pattern does most describe this model?
• The ____________ is often employed when there is a need to use different sets of objects and where the objects could be added or changed some time during the lifetime of an application.
• 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?
• Which design pattern defines one-to-many dependency among objects?
• In which of the following pattern, a null object replaces check of NULL object instance?
• The Proxy pattern deals with situations where you have a complex object or it takes a long time to create the object.
• ____________ object which receives request from UI layer object and then controls/coordinates with other object.
• ________  specifies a path to send and receive messages between two objects
• Given the following scenario: You want to create families of related objects, to be used interchangeably to configure you application. What is most appropriate GoF pattern to use?