Archive for October, 2010
Computer Network Securities
Computer security policies are the basic guidelines and rules for accessing a network. These lay out some basic concepts to secure your computers. Computer network security is a complicated area, and is taken up by experts with many years of on-the-job experience.
As more people turn to computers for simplifying their day-to-day activities and jobs, the need for general users to understand the concepts of network security has become important. One should know the risks involved in using the computer without the security systems, and learn how to deal with them successfully both at home and at work.
There are two popular types of network security systems transit security and traffic regulation systems. When both of these join forces you can be assured of the delivery of important information to the right person without any network pilferage problems. The receiver should also ensure that the information received should be carefully processed using a computer which is loaded and protected with latest protection software.
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Computer Network Topology
Network topology is the physical interconnection of the elements of a computer network. Broadly there are two kinds of elements in computer networks – node and link. Topology is the two dimensional geometric shape or structure formed in a network with its nodes being apices and the links being the sides. This shape may or may not match with the actual physical design of the devices on the computer network. Even in identical topologies, distances between nodes, physical interconnections, information transmission rates, andor signal types may vary from each other. Exclusively in Local Area Networks (LAN) both a physical topology and a logical topology are homologous with respect to links and nodes.
Broadly network topology can be categorized into two types