The networks behind the internet are responsible for transmitting data and enabling real-time communication and access to information.Email, web browsing, and social networks all depend on reliable and efficient network connections to function.Specialized protocols like SMTP, POP3, IMAP, HTTP, and HTTPS are used in different applications to ensure smooth data transmission.Content Delivery Networks (CDNs) play a crucial role in serving millions of users by caching and distributing content for faster load speeds.