QUESTION 6 In OO design, which of the following properties among classes do we prefer? High Coupling and Low Cohesion Low Coupling and High Cohesion QUESTION 7 Which UML relationship is known as a "modeling placebo"? Association Aggregation Composition Dependency QUESTION 8 Why study design patterns? Choose all that apply. Reuse solutions Establish common terminology Increase understanding Make code more maintainable QUESTION 9 Choose the statements that are true about the Adapter pattern. It wraps an object or a class. It creates a new interface It adapts an existing class to an object it allows classes that have different interfaces to work together. QUESTION 10 Which of the following design patterns require a pre-existing class? O Facade Adapter Both Facade and Adapter Neither Facade nor Adapter