What type of local data sharing device is appropriate for the office?

A local area network (LAN) is the most appropriate data sharing device for an office environment. A LAN allows multiple devices, such as computers, printers, and servers, to connect and communicate over a limited geographical area, typically within a single building or campus. This setup facilitates efficient data sharing, resource management, and collaborative work among employees.

Using a LAN, office workers can easily access shared files, applications, and printers, enhancing overall productivity and streamlining workflows. The network can also support a secure connection, ensuring that sensitive data is protected while being shared within the office.

In contrast, a router primarily serves to connect different networks, directing traffic between them, rather than facilitating local data sharing within the same network. A PABX system is specifically designed for managing telephone communications, while CCTV refers to surveillance equipment, which does not pertain to data sharing in an office context. Thus, the LAN stands out as the most suitable option for local data sharing in an office setting.