Networks

Networks

1. Network topologys

   • Star
   • Mesh
   • Partial mesh

2. Types of network

   • WAN
     • In its simplest form, a wide-area network is a collection of local-area networks or other networks that communicate with one another. A Wan is essentially a network of networks..
   • LAN
     • Client sever
       • Client-server denotes a relationship between cooperating programs in an application, composed of clients initiating requests for services and servers providing that function or service.
       • The advantages of a client-server network are greater security of the network, more control
       • If the server fails for any reason, then none of the requests of the clients can be fulfilled.
     • Peer to peer
       • A peer-to-peer network in which interconnected nodes ("peers") share resources amongst each other without the use of a centralized administrative system.
       • Easy file sharing: An advanced P2P network can share files quickly over large distances.
       • No control of access to data as there is no server
     • A local-area network (LAN) connects the computer hardware in a localized area such as an office or home.

3. Definition of a network

   • Two or mote computers connected together with the purpose of communicating over the internet.