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Some common Top-Level Domains are as follows:

               Abbreviations          Used to Denote            Abbreviations              Used to Denote

                    .com       Commercial firms                      .net       ISP’s/Networks
                    .edu       Universities/Educational firms        .org       Non-Government/Non-Profit
                                                                                Organisations
                    .gov       Government Bodies/Organisations
                                                                      .co       National and Multinational Companies
                    .mil       Military Organisations
                                                                      .int      International Organisations

              In DNS, codes of countries can also be included. The code comprises of two letters. Some common codes of
              certain countries are:

                            Code         Denotes the Country              Code         Denotes the Country
                             .au        Australia                          .in       India

                             .uk        United Kingdom                     .us       United States of America
                             .jp        Japan                              .nz       New Zealand

                             .fr        France

                 • Firewall: A firewall is a network security system that monitors and controls incoming and outgoing network
                traffic based on predetermined security rules. It acts as a barrier between a trusted internal network and untrusted
                external networks, like the internet.

                 • IP (Internet Protocol) Address: It is a unique logical address of a device that helps identify a device at the
                time of sending and receiving data in a Network. It is made up of numbers or characters. Remembering these
                numeric values to access a specific website is a difficult task, so these numbers are given sensible textual names
                called web addresses.


                       Microsoft Edge

              Microsoft Edge is designed by Microsoft and comes as a default browser installed with Windows Operating System.
              To make your navigation easier on the Internet, we have to understand some basic features of Microsoft Edge.


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