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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
                             .jp        Japan                              .us       United States of America

                              .fr       France                             .nz       New Zealand


              •  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.




                      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.

                                      Title Bar               Address Bar                          Control Buttons


                     Navigation Bar
























              Some of its commonly used options are explained below:
              •  Title Bar: The bar on the top of the Microsoft Edge window that displays the name of the application and website.
              •  Control Buttons: These are present on the right corner of the Microsoft Edge window. Maximize, Minimize, Restore
                and Close buttons are the Control Buttons to handle the application program in different ways.

              •  Address Bar: The wide bar just below the title bar is the address bar. This bar is used to enter the web page address
                you wish to visit. Press the Return or Enter key to access the site or click on the "Go" or arrow button to the right of
                the address box.

              •  Navigation Bar: These buttons help move back and forth through web pages you have visited. Some of the commonly
                used buttons are: Back, Forward, Home, Refresh, Reload, Stop.





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