Ethical Hacking Essentials Practice Test

Which layer of a web application includes the functional programming that can be implemented using .NET, Java, and Python?

1. Service layer

2. Presentation layer

3. Business logic layer

4. Data layer

The correct answer is: Business logic layer

The business logic layer is the component of a web application that handles the core functionality and operational rules of the application. This layer is crucial because it defines the business rules, workflows, and processes that dictate how data can be created, stored, and changed. Languages like .NET, Java, and Python are commonly used to implement this functionality due to their robust frameworks and libraries that support the development of web applications. By handling the logic that governs application behavior, this layer interacts with the presentation layer (which manages user interface elements) and the data layer (which is responsible for data storage and retrieval). The service layer, while important for managing the interaction between the business logic layer and other parts of the application (like APIs), does not itself contain the primary business logic functionality. The presentation layer focuses on what the user sees and interacts with, while the data layer handles the database management, making the business logic layer the correct choice in this context.