What defines a Distributed Database?

A distributed database is characterized by its ability to store data in more than one physical location. This setup allows for the distribution of data across multiple servers, locations, or even geographical areas, enabling better performance, resilience, and scalability. Having data spread across various sites can provide advantages such as improved access speed for users who are geographically closer to one of the database instances, fault tolerance, and enhanced reliability.

This model contrasts significantly with a centralized database, which is confined to a single physical site. Options that suggest variations of user devices or lack of network connections do not align with the fundamental definition of a distributed database, as they do not inherently involve the physical distribution of data across multiple locations. Thus, the identification of a distributed database as one that is stored in more than one physical location accurately captures the essence of its architecture and functionality.