networks and topologies

define LAN
describe the characteristics of LAN
define WAN
describe the characteristics of WAN
define network
benefits of networking devices
define and describe internet
state the two different types of network model
define and describe the client-server model
state the key features of a client-server network:
state the benefits of client-server network
state the drawbacks of client-server network
define the peer-to-peer networks.
state the key features of peer-to-peer networks.
state the benefits of peer-to-peer networks
state the drawbacks of peer-to-peer networks
define Topology
state the five requirements for a data communication system
state the three mode data or message can be sent
define message and describe its three types