What are the three tiers in a three-tier web application environment?

The three tiers in a three-tier web application environment refer to distinct layers that work together to deliver a complete web application. The presentation tier is responsible for the user interface and the client-side experience, allowing users to interact with the application. The application tier, often called the business logic tier, contains the core application functionalities and processes user requests, applying the business logic. Lastly, the data tier is where the application’s data is stored, retrieved, and manipulated, typically involving databases.

This architecture promotes separation of concerns, making it easier to manage and scale each layer independently. Each tier can be developed, maintained, and scaled without impacting the others, which enhances flexibility and allows for the application to be more robust in handling various tasks and workloads.

In contrast, the other choices offer variations on this concept but do not encapsulate the structured layering effectively as the correct answer does. For instance, "frontend, backend, and database" might signify the same components, but it does not highlight the role of each tier in the same explicit manner. Likewise, terms like "client, server, and storage" and "interface, logic, and storage" lack the clarity of roles inherent in the three-tier architecture. Thus, the correct answer clearly defines the