What best describes an Intranet?

An intranet is best described as a self-contained network for internal use. This type of network is designed specifically to facilitate communication, collaboration, and the sharing of information within an organization or a specific group. It typically operates using the same technologies that underpin the internet, such as web browsers and user interfaces, but it is restricted to authorized users within the organization. This enhances security and ensures that sensitive information remains accessible only to those who need it for their work.

By contrast, other options describe different types of networks or platforms. A public network accessible by anyone refers to the internet, which is open to all users without restrictions. A network used solely for educational purposes implies a focus on learning and teaching, which does not capture the broader functional scope of an intranet, as it can be used for various purposes including corporate communications, project management, and information dissemination. Lastly, a social media platform is primarily designed for social interactions and networking among users, significantly differing from the internal-focused nature of an intranet, which is tailored to organizational efficiency and communication.