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Network Topology

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                                                                   Network Topology A network topology refers to the layout of the computers and devices in communications network. Two types of network topology:   Physical topology :   The arrangement of cabling.  Logical topology   :   T he path that data travels between computers on a network.                                                                                                                    Different between bus, star and ring...
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THE INTERNET ADDRESS

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What is IP Address ? A number that uniquely identifies each computer or device connected to the Internet. IP addresses are also referred to as IP numbers and Internet addresses. IP address sometimes is called a dotted decimal number or dotted quad. IP usage A way to find specific server or computer on the internet or a network. Identify for a particular device/machine on a particular network. Allows transfers of files and e-mail. IP structure IP addresses usually consists of four groups of number each separated by a period. The number in each group is between 0 and 255. It is 32 bit long, each group is 8 bits long. IP versions Two versions of the Internet Protocol (IP) are in use:  IP Version 4 (IPv4)   IP Version 6 (IPv6) Domain names and IP addresses People prefer to use easy-to-remember names instead of IP addresses. The domain name system (DNS) is an Internet-wide distributed database that translates b...
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INTERNET CONNECTION Two types of Internet Connection: Dial-up Connection and broadband internet connection. DIAL-UP CONNECTION Two types of dial-up connection: Conventional Dial-up          To connect to the Internet, your computer dials its modem                 and connects to a modem attached to computer belonging to             our ISP.                     ISDN ( Integrated Service Digital Network )          1.Typically uses two phone lines transfer data.         2.  ISDN requires a special ISDN modem.         3. I SDN requires a special ISDN modem.         4. Characteristics of ISDN:   Faster, but pricey                               ...
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