Which of the following is NOT a typical use case for the Adapter Pattern?
Using third-party libraries with incompatible interfaces.
Creating a reusable component that can work with various data sources.
Implementing a new sorting algorithm for a data structure.
Integrating legacy code with a modern system.
In the context of the Strategy Pattern, what does a 'Context' object typically do?
It maintains a reference to a Strategy object and delegates work to it.
It acts as a factory for creating Strategy objects.
It defines the interface for all Concrete Strategies.
It implements the actual algorithms defined by the Strategy interface.
What is a key characteristic of a well-implemented design pattern?
It introduces significant code complexity.
It promotes code reusability and maintainability.
It eliminates the need for documentation.
It is tightly coupled to a specific problem domain.
In a Facade Pattern implementation, what is the role of the Facade class?
It directly implements the complex logic of the subsystem.
It restricts access to the subsystem, preventing any external interaction.
It delegates requests to appropriate subsystem classes and returns results.
It defines the interfaces for all classes within the subsystem.
How does the Strategy Pattern promote the Open/Closed Principle?
It prevents modification of existing strategies, ensuring their integrity.
It allows adding new strategies without modifying the existing Context class.
It reduces the need for inheritance, making the codebase more flexible.
It promotes code reuse by allowing strategies to be shared across multiple contexts.
What is a key benefit of using the Strategy Pattern?
Enhanced security by restricting access to algorithms.
Reduced object creation overhead.
Elimination of conditional statements.
Improved code readability and maintainability by separating algorithm logic.
What is the primary intent of the Factory Method pattern in software development?
To reduce code duplication by reusing object creation code across classes.
To delegate object creation to subclasses, promoting extensibility.
To enforce strict object creation rules through a central factory class.
To create objects directly within a class, exposing instantiation logic.
What is a potential drawback of using the Factory Method pattern?
It is not suitable for creating objects from abstract interfaces.
It violates the Open/Closed Principle, making code harder to modify.
It can lead to increased code complexity, especially with many subclasses.
It prevents the use of dependency injection for object creation.
Which scenario best exemplifies a situation where the Command Pattern would be beneficial?
You have a simple algorithm that doesn't require encapsulation or extensibility.
You need to create objects of varying types based on user input.
You have a graphical user interface with buttons that trigger different actions on a document.
You need to represent a hierarchical relationship between objects.
In Python, a common way to implement a Singleton is by using:
Abstract classes
Decorators
Interfaces
Multiple inheritance