This report addresses the network challenges faced by Cookies Corporation, a chain of cookie stores experiencing slow data connectivity and unreliable voice calls. The report proposes a comprehensive network upgrade, discussing key components such as network infrastructure, network convergence, and unified communication to integrate video, voice, and data services. It explores different types of LAN and WAN connections, along with cabling plans and transmission media. Furthermore, the report delves into IP and DNS management, networked services, data storage solutions (including cloud, data center, and distributed databases), and data processing models. The report concludes with a discussion of peer-to-peer and client-server architectures, and the benefits of these technologies to Cookies Co., ultimately providing a detailed plan for an efficient, reliable, and scalable network infrastructure.