200-901 Exam Dumps | A developer creates a program in which an object maintains a list of classes based on the observer pattern.

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Question 107/228

A developer creates a program in which an object maintains a list of classes based on the observer pattern. The classes are dependent on the object. Whenever the state of the object changes, it notifies the dependent classes directly through callbacks. Which advantage of the observer pattern offers minimum dependencies and maximum flexibility between dependent objects or classes?

A. tight coupling

B. cohesion

C. mediation

D. loose coupling

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