network
Network Layer
PACKET INTERNET GROPER uses ICMP echo request and reply messages to check the physical and logical connectivity of machines on an internetwork . Hence Ping works on layer 3 of OSI model.
Network Layer
provide connectivity between smaller local networks
internetwork
core layer
Layer 3
Hubs and repeaters operate at the Physical Layer of the OSI Model. The Physical Layer is the first layer of the OSI Model.
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).
distribution
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 layer which is the first layer in OSI reference model is responsible for signal encoding and decoding.