Which component is NOT part of the Internet?

The correct answer identifies databases as a component that is not inherently part of the Internet itself. The Internet consists of the infrastructure and protocols that facilitate connectivity and communication between various devices globally. Specifically, cables, servers, and routers are integral components that enable this functionality.

Cables serve as the physical medium through which data travels, linking together various networks and devices. Servers are powerful computers that host websites, manage resources, and store data, making them essential for the provision of services over the Internet. Routers direct the data packets between different networks, ensuring that information reaches its intended destination.

While databases are crucial for storing and managing information, they are not a part of the Internet's core infrastructure. Instead, they are applications that may be hosted on servers, but they do not contribute to the network's physical or structural elements. As such, their role, while significant in the context of Internet services, does not classify them as a fundamental part of the Internet itself.