Design Patterns Quiz

What is the main objective of Design Patterns in Software Engineering?

• To provide solutions to recurring design problems

• To decrease code reusability

• To slow down the development process

• To increase code complexity

Why is code reuse desirable in software engineering?

• To promote unreliability

• To increase duplication of effort

• To slow down development

• To save resources and promote reliability

What is the purpose of the Singleton Design Pattern?

• To allow multiple instances of a class

• To ensure only one instance of a class is created

• To make all class methods static

• To prevent any instances of a class

Which category does the Observer (Publish-Subscribe) Pattern belong to?

• Structural Design Patterns

• Implementation Design Patterns

• Behavioral Design Patterns

• Creational Design Patterns

What is the main problem addressed by the Delegation Pattern?

• How to reuse methods from another class

• How to ensure only one instance of a class is created

• How to notify observers of state changes

• How to create immutable objects

What is the purpose of the Abstraction-Occurrence Pattern?

• To represent sets of related objects with common information

• To ensure immutability of objects

• To create a single instance of a class

• To delegate method calls to another class

Which design pattern is closely related to the Notification architectural style?

• Delegation Pattern

• Observer (Publish-Subscribe) Pattern

• Immutable Pattern

• Singleton Pattern

What is the main advantage of using the Observer (Publish-Subscribe) Pattern?

• Slower performance

• Increased code duplication

• increased coupling between objects

• Loose coupling between objects

In the context of software design patterns, what does the term 'context' refer to?

• The specific problem being addressed

• The general situation in which the pattern applies

• The implementation details

• The constraints of the solution

Which design pattern is used to ensure that the state of an object never changes after creation?

• Observer (Publish-Subscribe) Pattern

• Delegation Pattern

• Immutable Pattern

• Singleton Pattern