A Remote Proxy is typically used for:
Creating a placeholder for an object that hasn't been fully loaded.
Providing a local representation of an object in a different process.
Controlling access to the real subject based on user roles.
Caching the results of expensive operations for performance improvement.
In which scenario would the Prototype Pattern be LESS suitable?
When you need to create objects based on a configuration file at runtime.
When you want to avoid dependencies on concrete product classes.
When you have a large number of objects with minor variations.
When object creation is a lightweight operation.
What is a key advantage of using a 'Flyweight Factory' in the pattern?
It provides a centralized point for accessing and managing extrinsic state.
It simplifies the creation of complex Flyweight objects.
It enforces the use of a single instance for each unique Flyweight.
It allows for dynamic loading and unloading of Flyweight objects.
How does the Prototype Pattern contribute to code flexibility?
It eliminates the need for inheritance.
It promotes loose coupling by reducing dependencies between classes.
It allows you to define new object types at runtime.
It simplifies the process of unit testing.
How does the Iterator Pattern contribute to code maintainability?
By centralizing object creation logic.
By encapsulating the iteration logic and abstracting the aggregate structure, making changes to either independently easier.
By defining a family of algorithms and making them interchangeable.
By providing a global point of access to a single instance.
In a vending machine simulation using the State Pattern, what would likely be a 'State'?
The 'Out of Stock' condition
The number of coins inserted
The act of dispensing a product
The price of a product
In which scenarios is the Iterator Pattern particularly valuable?
All of the above.
When you want to provide a consistent way to traverse elements regardless of the collection type.
When multiple algorithms need to operate on a collection without knowledge of its internal structure.
When the internal representation of a collection is subject to change.
What type of relationship does the Composite pattern leverage to represent the parent-child structure?
Composition
Inheritance
Dependency
Aggregation
In a Composite Pattern, what is the role of the 'Leaf'?
Acts as an iterator for traversing the composite structure.
Represents the composite object containing other components.
Defines the interface for accessing and managing child components.
Represents the individual object in the composition.
Which of these scenarios is a good candidate for using the Proxy Pattern?
Creating objects that are only instantiated when actually needed.
Representing a complex object hierarchy in a simplified manner.
Iterating over a collection of objects without exposing its structure.
Defining a one-to-many dependency between objects.