Physical Layer.
network layer
Application Layer
Suggest you go to a search engine and look for OSI seven layer model
* physical layer is the lowest layer of the OSI model and deals with "mechanical,electrical,fuctional and procedural means required for transmittion of the data according to the OSI defination,
it comes in the first layer, or popularly known as the physical layer. must not be confused to be in datalink layer.
First layer of the OSI model covers the cabling and electrical signaling. The first layer of OSI model is the physical layer. The physical layer also decides the transmission mode and physical media.
Layer 2 data link layer
It works the same on all Layer 1 media. IP encapsulates OSI Layer 4 data. IP can carry voice, video, and other types of data, but "media independent" refers to the OSI Layer 1 medium that carries the data across the networks. IP, or any other communication, can occur without a physical (OSI Layer 1) medium
ping commands checks status of upper layer of osi models
MAC is a sublayer of Data layer.
OSI stands for Open system interconnection model. Application layer is the seventh layer in OSI model.
Data Link