What is the purpose of a hub in a network?

The purpose of a hub in a network primarily revolves around its function as a basic networking device that connects multiple computers or devices within a local area network (LAN). A hub acts as a central point where all the connected devices can communicate with each other. It operates at the physical layer of the OSI model, meaning it does not have the capability to filter or direct data traffic intelligently; instead, it broadcasts incoming data packets to all connected devices, allowing them to receive messages intended for the network as a whole.

By serving as a connecting point, a hub facilitates communication and data transmission between networked devices, enabling them to share resources and access shared services. It is particularly useful in simple network designs where advanced data handling and routing are not necessary.

While a hub connects devices, it does not inherently provide internet access, increase security, or store data, which clarifies why the other options do not accurately represent the primary function of a hub.