Behavioral & Structural Design Pattern Quiz Quiz

A visually engaging illustration showcasing various software design patterns, highlighting the concepts of Adapter, Strategy, and Decorator within a colorful diagram or flowchart.

Mastering Design Patterns Quiz

Test your knowledge of behavioral and structural design patterns with this comprehensive 10-question quiz. Whether you're a developer looking to brush up on your skills or a student eager to learn, this quiz is designed to challenge and enhance your understanding.

Cover key design patterns like Chain of Responsibility, Strategy, and Decorator.
Multiple choice questions to assess your knowledge.
Score points and see how well you understand design patterns!

10 Questions2 MinutesCreated by LearningTree42

Which Design Pattern Suggests Multiple classes through which request is passed and multiple but only relevant classes carry out operations on the request

Adapter

Chain Of Responsibility

Command

Strategy

In the Chain of Responsibility pattern, which of the following statements is true?

The chain is defined at compile-time and cannot be modified at runtime.

Each object in the chain has a reference to its successor in the chain.

The chain can only handle one type of request.

The chain of objects must be implemented using inheritance.

Which of the following describes the Visitor pattern correctly?

In this pattern, a visitor class is used which changes the executing algorithm of an element class.

This pattern is used to separate application's concerns.

This pattern is used to decouple presentation tier and business tier.

This pattern is used in EJB persistence mechanism.

Which Design Pattern Provides a Single Class which provides simplified methods required by clients and delegates calls to different Sub systems

Adapter

Builder

Facade

Proxy

Which of the following is true for Proxy Pattern

Has exactly same interface as real objects

Handles routines or illegitimate messages without accessing the real objects

Delegates messages that it cannot handle to real objects

All of the mentioned

How does the Adapter pattern promote code reusability?

By encapsulating a family of algorithms and making them interchangeable at runtime.

By allowing objects to change their behavior based on external requests.

By providing a common interface that allows objects with incompatible interfaces to work together.

By defining a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.

Which statement best describes the Strategy pattern's implementation?

The Context class holds a reference to the Strategy interface and delegates the algorithm execution to the current ConcreteStrategy object.

The Strategy and ConcreteStrategy classes communicate directly with each other to decide the algorithm execution.

The ConcreteStrategy classes directly implement the algorithm without the need for a Strategy interface.

The Context class directly implements multiple algorithms without the need for separate Strategy objects.

Which statement best describes the Decorator pattern's implementation?

The Decorator class inherits from the Component class and adds additional functionality by overriding its methods.

The Decorator class has a reference to the Component interface and delegates the calls to the wrapped ConcreteComponent object.

The ConcreteComponent class directly inherits from the Component class and adds additional functionality.

The Decorator and ConcreteDecorator classes communicate directly with each other to provide additional functionality to the Component object.

By storing the necessary information in the Command object to revert the executed operation.

How does the Command pattern support undoable operations?

By encapsulating a family of algorithms and making them interchangeable at runtime.

By allowing objects to change their behavior based on external requests.

By providing a common interface that allows objects with incompatible interfaces to work together.

What is the purpose of the Decorator pattern?

To provide a way to access the elements of an aggregate object sequentially without exposing its underlying representation.

To define a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.

To dynamically add additional responsibilities to an object by wrapping it in an object of a decorator class.

To allow objects with incompatible interfaces to work together by providing a common interface.

Behavioral & Structural Design Pattern Quiz Quiz

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