Certified Wireless Network Administrator (CWNA) Practice Test

Infrastructure mode requires a central access point to manage communication between wireless clients and other network resources. In this configuration, the access point acts as a hub that facilitates efficient communication, enabling wireless clients to connect to each other and to the wired network. This centralization allows for better management, enhanced security, and the ability to extend the network over larger areas compared to ad-hoc mode.

In contrast, ad-hoc mode is characterized by a peer-to-peer network where devices communicate directly with each other without the need for a central access point. This mode is suitable for temporary connections and smaller networks but lacks the management and security features that an access point provides. The absence of a central point means that each device is responsible for maintaining its connections, which can lead to challenges in terms of network cohesion and performance.

In summary, the presence of a central access point in infrastructure mode is fundamental to its operation, as it enhances the network's structure and capabilities, making it distinct from the more decentralized ad-hoc mode.