Final answer:
In a fat-client architecture, the database is typically found on the server side, where it can be managed, stored, and securely accessed.
Step-by-step explanation:
In a fat-client (of client-server) architecture, the database normally resides on the server side. This setup allows the server to manage, store, and secure the data, while the client handles the presentation logic and possibly some of the business logic. The client, which is the fat-client in this scenario, is typically responsible for more processing than a thin client would be, but the database itself is stored and accessed on the server.