134 OthersQ&A about NetworksQ.1 What is a network ?A A network is a system in which a group of computers are connected bycable (copper wire, optical fiber, etc), infrared ray, radio waves or othermeans in order to share and exchange information.There are basically two types of computer networks.A Local Area Network or LAN consists of a group or network of computersin a limited range.A Wide Area Network or WAN is a network of computers that are connectedover long distance. The Internet is an example of a WAN that has connecteda multiple number of networks.Q.2 What is an IP address ?A In a network, in order to distinguish your computer from another it isnecessary to assign a number; this number is called an IP address.When you connect to an outside network such as the Internet the IP addressthat is used is referred to as a "Global IP address. In a Local Area Networkthe IP address that is used is called a "Private IP address".An IP address is divided into 4 blocks of numbers separated by periods,such as "192.168.15.10". The assigned numbers can use the digits 0-255with private IP addresses usually beginning with numbers such as"192.168.".- However, the number "255." is not usually used.- This number is absolutely necessary to enable participation in a network, so itis necessary to set the IP address to a number that suits your networkenvironment.Q.3 What is a Subnet mask ?
