Exploring Design Patterns

What are creational design patterns primarily concerned with?

• Object creation mechanisms

• User interface design

• Network communication protocols

• Data storage solutions

Which of the following is NOT a creational design pattern?

• Factory Method

• Builder

• Singleton

• Observer

In the Singleton pattern, how many instances of a class can exist?

• 1

• 2

• 5

• 0

What is the main purpose of the Factory Method pattern?

• To create a single instance of a class.

• To enforce strict type checking on object creation.

• To define a common interface for all objects.

• To provide a way to create objects without specifying the exact class of object that will be created.

What is the primary focus of structural design patterns?

• To manage the lifecycle of objects.

• To enforce security protocols in applications.

• The primary focus of structural design patterns is to define how objects and classes can be combined to form larger structures.

• To optimize the performance of algorithms.

Which of the following is a structural design pattern?

• Observer

• Decorator

• Adapter

• Singleton

What does the Adapter pattern do?

• The Adapter pattern enables incompatible interfaces to work together.

• The Adapter pattern creates new interfaces from existing ones.

• The Adapter pattern enhances the performance of existing systems.

• The Adapter pattern is used for data storage optimization.

Which design pattern provides a way to create objects without specifying the exact class?

• Factory Method

• Singleton Pattern

• Observer Pattern

• Decorator Pattern

What is the main advantage of the Composite pattern?

• It limits the flexibility of the system by enforcing strict type checks.

• It increases the complexity of client code by requiring separate handling for each type.

• It simplifies client code by allowing uniform treatment of individual objects and compositions.

• It reduces the performance of the application by adding unnecessary layers.

What is the primary goal of behavioral design patterns?

• To simplify the user interface design.

• To increase the number of objects in a system.

• To define clear communication patterns and responsibilities among objects.

• To enhance the performance of algorithms.