What type of device will you use to amplify the wi-fi connection coming from the main server?

The correct choice is a router because it serves as a central point in a network that connects devices, typically amplifying and redistributing the internet connection from a main server or modem to various endpoints. Routers are specifically designed to manage network traffic efficiently, direct data packets, and expand the coverage area of a Wi-Fi signal. By connecting multiple devices either wirelessly or through wired connections, routers ensure that users can access the internet at home or in an office setting.

In contrast, a LAN (Local Area Network) refers to the network itself rather than a device, encompassing the hardware and technology that interconnects devices in a specific area. PABX (Private Automatic Branch Exchange) is a private telephone network used for routing calls internally and externally, but it does not provide internet amplification. Similarly, CCTV (Closed-Circuit Television) systems are used for surveillance and video monitoring, not for enhancing Wi-Fi connections. Therefore, a router is the most appropriate device for amplifying Wi-Fi connections.