Shruti Speak's

IP Addressing: IP Address is of 32 bits. Eg : 192.168.2.25 No 2 system can have same IP as network conflict occurs. Address space IPV 4   is 2 32 Notations 1.        Binary notation – 0&1 2.        Dotted decimal notation -0-9 3.        Hexadecimal-0-15 Types of IP Addressing 1.        Class Full addressing: IP address space is divided/classified into 5 classes A,B,C,D and E. Address space of class A-2 31 Address space of class B-2 30 Address space of class C-2 29 Address space of class D-2 28 Address space of class E-2 28 Problems in Class A and B Host Id remains fixed & net id changes, 3 net id are there in class A and 2 net id   in class B and so it is difficult to change it again and again. A & B-small organization C- large organization D -military, for multicast addressing E-reserved for future use Net ID- Network id Host id-id given to the system Class A, B and C are divided into net id and host id. These part

The Internet Today Internet has come a long way since 1960s. The Internet today is not a simple hierarchical structure. It is made up of very local and wide area networks joined by connecting devices and switching stations. Today Internet is run by private companies and not government.   Most people know the Internet through its applications: the World Wide Web, email, streaming audio and video, chat rooms, and music (file) sharing. TheWeb, for example, presents an intuitively simple interface. Users view pages full of textual and graphical objects, click on objects that they want to learn more about, and a corresponding new page appears. Most people are also aware that just under the covers, each selectable object on a page is bound to an identifier for the next page to be viewed. This identifier, called a uniform resource locator (URL), uniquely names every possible page that can be viewed from your Web browser. For example, http://www.google.com/index.html is th