Which of the following describes the connectivity level of wireless bridges according to the OSI model?

The correct answer identifies wireless bridges as functioning primarily at Layer 2 of the OSI model, which is the Data Link layer. This layer is crucial for the management of data frames between devices on the same local area network (LAN). Wireless bridges facilitate the connection of two or more network segments by forwarding data between them based on MAC addresses, which operate at Layer 2.

Layer 2 connectivity is responsible for error detection and frame synchronization, which are vital for ensuring that data is transmitted efficiently and accurately over the wireless link. Wireless bridges handle these functions by ensuring that frames are appropriately acknowledged and retransmitted if necessary.

In contrast, other layers serve different purposes. Layer 1, the Physical layer, deals with the actual physical connection and transmission of raw data bits over a medium, without regards to the structure or meaning of these bits. Layer 3, the Network layer, focuses on routing and forwarding packets based on logical addressing (like IP addresses), which is not the primary role of a wireless bridge. Finally, Layer 4, the Transport layer, oversees end-to-end communication and error recovery, which again is beyond the specific responsibilities of a wireless bridge. Therefore, identifying the connectivity level as Layer 2 accurately reflects the primary function and operational scope