What is the purpose of a wireless bridge?

A wireless bridge primarily functions to connect two or more local area networks (LANs) at the Media Access Control (MAC) layer, allowing them to communicate with each other as if they were part of the same network. This capability is essential when there are physical obstacles or distances that prevent a direct wired connection between the networks, enabling the seamless transfer of data.

In this instance, the bridge operates by receiving data packets from one network, managing their transmission, and then sending them to the other network. This allows devices on separate LANs to share resources and communicate effectively, making it an essential tool for network expansion and integration.

The other choices, while related to wireless technology generally, do not accurately describe the primary role of a wireless bridge. Extending wireless coverage refers to devices like repeaters or access points. Providing internet access to mobile devices typically involves routers or gateways. Transmitting data using RFID technology is not relevant to the function of a wireless bridge, as it pertains to a different technology entirely.