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CS Professional · Artificial Intelligence, Data Analytics and Cyber Security - Laws and Practice · Enterprise Resource Management

In the classic three-tier ERP architecture, which arrangement correctly maps the tiers to their roles?

The presentation tier provides the user interface, the application tier executes business logic and transaction processing, and the database tier stores the data. This separation lets each tier be scaled and secured independently, which is why ERP systems use it.

  1. APresentation tier handles user interface, application tier runs business logic and processing, database tier stores dataCorrect
  2. BPresentation tier stores transactions, application tier shows screens, database tier runs business rules
  3. CPresentation tier runs business logic, application tier stores data, database tier handles user screens
  4. DPresentation tier handles backups, application tier handles encryption only, database tier handles user login screens

Explanation

The presentation tier is the client interface that users see. The application tier processes business rules and transactions, and the database tier stores and retrieves data. The other options swap these responsibilities, which breaks the separation of concerns that makes the architecture scalable.

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