What are Design Patterns?

• B. A reusable solution to a commonly occurring problem in software design

• A. A finished design that can be transformed directly into code

• C. A description/template for solving a problem that can be used in many different situations

• D. A method for modifying a family of algorithms

What do Creational Patterns deal with?

• B. Object creation mechanisms

• A. Object deletion mechanisms

• C. Object modification mechanisms

• D. Object duplication mechanisms

What does the Factory Method design pattern do?

• A. Deletes objects without exposing the instantiation logic to the client

• B. Creates objects without exposing the instantiation logic to the client

• C. Modifies objects without exposing the instantiation logic to the client

• D. Duplicates objects without exposing the instantiation logic to the client

What does the Prototype design pattern allow you to do?

• A. Delete an existing object to make additional copies

• B. Create new things based on existing structures

• D. Duplicate an existing object without creating copies

• C. Modify an existing object without creating copies

What does the Singleton design pattern ensure?

• D. Objects are created with global access

• B. Only one instance of a class is created

• A. Multiple instances of a class are created

• C. Objects are created without control

What do Structural Patterns emphasize on?

• A. Creating an accurate and efficient software system

• B. Deleting connections between classes and objects

• C. Modifying the code structure

• D. Assisting in the development of components

What does the Adapter/Bridge design pattern do?

• D. Composes objects into tree structures

• C. Converts the interface of one class into another interface

• B. Allows incompatible objects to collaborate

• A. Allows compatible objects to collaborate

What does the Composite design pattern allow you to do?

• A. Compose objects into tree structures

• D. Support vast quantities of objects by keeping memory consumption low

• B. Make additional functions without disrupting the original class

• C. Provide a simplified interface to a larger body of code

What does the Observer design pattern establish?

• D. A way to centralize communication between multiple objects

• C. A method for modifying a family of algorithms

• B. A way to pass requests along a chain of handlers

• A. A means for objects to observe and react to changes in other objects

What does the State design pattern enable an object to do?

• D. Provide access to a whole object's components in a sequential manner

• C. Customize users with queues, requests, and functions

• B. Pass requests along a chain of handlers

• A. Change how it behaves when its internal condition changes