Which term is used for a network that allows external users to access an organization's internal network?

The term "Extranet" refers to a type of network that extends an organization's internal network to external users, such as business partners, suppliers, or clients. This setup allows those external users to access specific resources and data within the organization's protected internal network while maintaining security and control over which areas are accessible. The main purpose of an extranet is to facilitate collaboration and communication with outside entities while keeping sensitive internal components secure.

In contrast, the "Internet" serves as a global information network that allows anyone with access to connect and communicate freely, without the focused security and controlled access characteristic of an extranet. The "Intranet" is the internal network of an organization, accessible only to its employees, and is not designed for outside access. A "Router" is a hardware device that directs traffic between networks but does not itself denote a network type that provides external access to an internal system.