What is the lowest layer of the osi model at which wired and wireless transmissions share the same protocols? a. layer 4 b. layer 3 c. layer 2 d. layer 1?

OSI stands for Open Systems Interconnection model. It is the model that defines the networking framework and the communication functions of a telecommunication network (technologies, communication protocols...). The model has 7 layers.
The lowest layer of the OSI model at which wired and wireless transmissions share the same protocols is Layer 3. Correct B
Layer 3 is also called Network layer. It is the layer responsible for packet forwarding and packet routing.