Network Architecture and Technology

Modern communication relies heavily on the architecture and technology of networks, which serve as the backbone for data exchange and global connectivity. Network architecture outlines how systems are structured, often using layered models such as OSI and TCP/IP to organize communication processes. Network technologies, on the other hand, include the hardware and protocols like Ethernet, Wi-Fi, and optical fiber that make these connections possible. In recent years, developments in Software Defined Networking (SDN), Network Function Virtualization (NFV), cloud computing, and the Internet of Things (IoT) have changed traditional networks into smarter and more flexible systems. This paper examines the essential components, models, and emerging technologies that enable reliable, high-speed, and efficient network communication.