The first layer called the physical layer.
Physical layer which is the first layer in OSI reference model is responsible for signal encoding and decoding.
physical layer
Transport layer
The MAC address would place it at the data link layer of the OSI model.
physical layer
Application
If you mean the OSI reference model, that's layer 1 (physical).If you mean the OSI reference model, that's layer 1 (physical).If you mean the OSI reference model, that's layer 1 (physical).If you mean the OSI reference model, that's layer 1 (physical).
Physical
OSI stands for Open system interconnection model. Application layer is the seventh layer in OSI model.
Networking layer of the OSI model
Data link layer
In the OSI reference model, that would be layer 3 (network).In the OSI reference model, that would be layer 3 (network).In the OSI reference model, that would be layer 3 (network).In the OSI reference model, that would be layer 3 (network).