What is a key benefit of encapsulating a request as an object in the Command Pattern?
It makes the code more difficult to extend with new commands.
It allows for requests to be queued, logged, or supported by other operations.
It increases code coupling for better maintainability.
It prevents the use of undo/redo functionality.
Design patterns primarily target which aspect of software development?
Application security
Database optimization
Code compilation speed
Code structure and organization
Which of these scenarios would be a suitable use case for the Decorator Pattern?
Representing a family tree with complex relationships between members.
Implementing a logging system that can be added to different parts of an application.
Creating different types of vehicles with varying features.
Managing the state of an object throughout its lifecycle.
How does the Facade Pattern differ from an Adapter Pattern?
Both patterns have the same purpose and implementation, with no significant difference.
Facade creates a new interface, while Adapter unifies existing ones.
Facade changes the interface of a class, while Adapter adapts to a different one.
Facade focuses on simplifying interfaces, while Adapter deals with incompatible ones.
When might the Strategy Pattern introduce unnecessary complexity?
When the context needs to be aware of the concrete strategy being used.
When performance is absolutely critical, and the overhead of strategy objects is a concern.
When the algorithms are very similar and could be easily combined into a single class.
When you have a small number of algorithms that are unlikely to change.
Which of the following real-world analogies best describes the Adapter Pattern?
A restaurant menu listing available dishes and their prices.
A car factory producing different models of cars.
A universal travel adapter allowing different plugs to fit into a socket.
A coffee machine using different types of coffee capsules.
What potential issue could arise if an observer modifies the subject's state during notification?
All of the above
It could result in unexpected behavior and make the system harder to reason about.
It could lead to an infinite loop.
It violates the principle of least astonishment.
What is a potential downside of overusing design patterns?
Unnecessary complexity and abstraction
Improved code performance
Increased code readability
Reduced code complexity
In the Adapter Pattern, what is the 'Adaptee'?
The client code that interacts with the adapter.
The interface that the client expects to use.
The class that needs to be adapted to a different interface.
The class that implements the Adapter Pattern.
Which of the following is a key difference between the Factory Method and Simple Factory patterns?
Simple Factory promotes extensibility, while Factory Method is less flexible.
Factory Method handles object creation centrally, whereas Simple Factory distributes it.
Simple Factory is better suited for complex object creation hierarchies.
Factory Method uses inheritance, while Simple Factory relies on a single factory class.