Exam FC0-U61 topic 1 question 225 discussion

B. One-tier Explanation: Notepad.exe is a simple text editor that runs entirely on the local machine without requiring a separate database or server. This makes it a one-tier (single-tier) architecture, where the application, logic, and data are all handled within the same environment. Why not the other options? A. n-tier – This refers to architectures with multiple layers, such as web applications with separate front-end, business logic, and database layers. Notepad does not use this structure. C. Two-tier – A two-tier architecture involves a client and a separate database server, which Notepad does not require. D. Three-tier – A three-tier system has presentation (UI), application logic, and a database layer, typically used in web or enterprise applications—not in simple programs like Notepad. Since Notepad.exe runs everything on a single machine, it is an example of a one-tier architecture.