A network can be defined as a system for connecting computers or other electronic devices using a single transmission method/technology. The computers can communicate with each other in a network and can send and receive data from each other.
CLASSIFICATION OF NETWORKS
Computer networks can be classified by its:
According to size of network, there are two main types:
- Local Area Network (LAN)
- Wide Area Network (WAN)
According to connectivity, networks can be divided in two topologies:
Point-to-Point topology refers to a communication connection between two nodes or endpoints. Start and Tree topologies are subtypes of point to point topology.
Broadcasting refers to a method of transferring a message to all recipients simultaneously. Satellite/Radio and Ring topology are examples of broadcast topology.
The network classification can also be done on the basis of medium of transmission:
- Copper wire
- Co-axial cable
- Optical fiber
- Radio waves
There are two types of network on the basis mobility aspect:
- Fixed networks
- Mobile networks
ADVANTAGE OF NETWORKS IN OUR DAILY LIFE
Networks are used for resource sharing, advertising, production, shipping, planning, billing and accounting purposes.
Networks are very useful at government level as federal government, local government and military organization uses networks for communication purposes.
In education we have online libraries which we can visit at our home PC. This is all just due to the networks.
In addition to this networks are being used in homes as well for example, to switch and control different devices from one place.
- Networking Short Questions/Short Answers (Good for CISCO Students) (professordkinney.wordpress.com)