Physical Layer – OSI Reference Model
Physical layer is the lowest layer of the OSI reference model. It…
Feature of OSI Model
1. Big picture of communication over network is understandable through this OSI model.…
Reference Models in Communication Networks
The most important reference models are : 1. OSI reference model. 2. TCP/IP reference…
Connection Oriented and Connectionless Services
These are the two services given by the layers to layers above…
Types of Communication Networks
Communication Networks can be of following 5 types: 1. Local Area Network (LAN)…
UnBounded or UnGuided Transmission Media
Unguided medium transport electromagnetic waves without using a physical conductor. This type…
