1. What are the layers of the OSI reference model?
There are 7 OSI layers: 1) Physical Layer, 2) Data Link Layer, 3) Network Layer, 4) Transport Layer, 5) Session Layer, 6) Presentation Layer, and 7) Application Layer.
2.What is the job of the Network Layer under the OSI reference model?
The Network layer is responsible for data routing, packet switching, and control of network congestion. Routers operate under this layer.
3. What is OSI, and what role does it play in computer networks?
OSI (Open Systems Interconnect) serves as a reference model for data communication. It is made up of 7 layers, with each layer defining a particular aspect of how network devices connect and communicate with one another. One layer may deal with the physical media used, while another layer dictates how data is transmitted across the network.