What is a private network used exclusively by an organization called?

A private network used exclusively by an organization is referred to as an intranet. An intranet is designed to facilitate internal communication and collaboration among members of the organization, offering a secure environment where employees can access resources, share information, and collaborate on projects without external interference. This network is typically protected by security measures to ensure that only authorized users can access the information within.

Intranets are used to streamline processes, improve productivity, and enhance the sharing of knowledge within the organization. This makes it an essential tool for many businesses and organizations that prioritize secure communication and resource sharing among their employees.

The other options, like extranet and VPN, provide different functionalities or purposes. An extranet allows controlled access to external users, like partners or customers, while a VPN (Virtual Private Network) creates secure connections over the internet for remote users. The internet itself is a global network that connects millions of private, public, academic, business, and government networks. Thus, these options do not accurately describe the private and exclusive nature of an intranet within an organization.