… that made the modern internet possible. It defines how devices are identified and how data packets are routed … PAT and NAT extend IPv4 usability by allowing many devices to share a single public IP . Over time, the explosive growth of internet-connected devices led to IPv4 address exhaustion , meaning most …
… on the server, providing a consistent view across multiple devices. Developed in the 1980s as an improvement over … on the server rather than being scattered across individual devices. Security is paramount: IMAP is often …