Network architecture refers to the design and layout of a computer network, which includes the physical and logical components such as routers, switches, and protocols. Network architecture determines how data is transmitted, received, and processed within a network. There are various types of network architectures, including client-server, peer-to-peer, and cloud-based architectures. Each type has its own advantages and disadvantages, and the choice of architecture depends on the specific requirements of the organization or application. Overall, network architecture plays a crucial role in ensuring the efficient and reliable functioning of a computer network, as well as determining factors such as scalability, security, and performance. It is essential for organizations to carefully design and implement their network architecture to meet their needs and objectives.