Internet infrastructure refers to the physical and virtual systems that enable the internet to function. This includes data centers, servers, routers, and cables that connect devices globally. These components work together to transmit data, allowing users to access websites, stream videos, and communicate online. Additionally, internet infrastructure encompasses protocols and standards that govern data exchange, such as the Transmission Control Protocol (TCP) and Internet Protocol (IP). These protocols ensure that information is sent and received accurately across different networks, facilitating seamless connectivity and communication for users worldwide.