NetworkTuts

NETWORK TOPOLOGIES Network topology   is the arrangement of the various elements of a   computer network, Essentially, it is the   topological  structure of a network and may be depicted physically or logically. BUS In local area networks where bus topology is used, each node is connected to a single cable, by the help of interface connectors. This central cable is the backbone of the network and is known as the bus (thus the name).  A signal from the source travels in both directions to all machines connected on the bus cable until it finds the intended recipient. If the machine address does not match the intended address for the data, the machine ignores the data. Alternatively, if the data matches the machine address, the data is accepted. Because the bus topology consists of only one wire, it is rather inexpensive to implement when compared to other topologies. However, the low cost of implementing the technology is offset by th...

Types Of n etworks Networks are classified  by their scope or scale. Common types of area networks are: ·         LAN - Local Area Network ·         WAN - Wide Area Network ·         WLAN - Wireless Local Area Network ·         MAN - Metropolitan Area Network ·         SAN - Storage Area Network, System Area Network, Server Area Network, or sometimes Small Area Network ·         CAN - Campus Area Network, Controller Area Network, or sometimes Cluster Area Network ·         PAN - Personal Area Network        LAN and WAN are the two primary and best-known categories of area networks, while the others have emerged with technology advances. LAN: Local Area Network         ...

Hi,here i begin lessons for networking in a beginners way of approach.I am doing  CCNA certification course right now and I thought it would be beneficial for others if I share what I have learned here. Hope you will find this helpful to learn basics of networking. This introductory chapter is meant to help you understand the importance of communication over networks. We will learn the fundamentals of communications over networks The world of networks Introduction           Communication has evolved greatly. Traditional communication methods such as mail have been overtaken by more sophisticated forms. Electronic Communication methods offer higher speeds; more efficiency, reliability, integrity, security; scale across larger geographical areas and require less resources to use. Tools and services such as e-mail, blogs, podcasts, instant messaging, and social networks among other multimedia methods have changed the way we communicate to a g...