Do bridges operate at physical layer?

The correct answer to this question is false. Instead of a physical layer, bridges operate at a data link layer. A bridge is a computer network device. Its job is to connect with other bridges that are using the same protocol. The data link layer they work at is of the OSI model, which stands for Open System Interconnect.

This model connects different networks and allows them to communicate. Though bridges have similarities to hubs and repeaters, the transmissions are only sent to those who want to receive it. Compared to hubs and repeaters, bridges also maintain the MAC address table.