What is a Network ? A Network is defined as an arrangement of a set of devices connected together by communication links for the purpose of sharing data. Each device may be called as a node which can be a computer, printer or any other devices capable of sending or receiving data generated by other nodes or devices on the network. Following are the types of Network:- 1. Local Area Network(LAN): LANs are privately owned networks defined within a small physical area such as in a single office, building or campus. LAN size is limited to a few kilometers for which the network management is simple. Most common LAN topologies are bus, ring, star and have data rates in the range of 4 to 16 megabits per second. LANs often use a transmission technology consisting of a single cable to which all the machines are attached. LANs are mostly used to allow resources to be shared among personal computers or workstations. 2. Metropolitan Area Network(MAN): A MAN is des...