Page 72 - Plus_V2.2_C8_Flipbook
P. 72

network and decides, on the basis of a set of predefined rules whether
              Factopedia                         to pass or not. Firewall  establishes a barrier between a trusted, secure

                                                 internal network and another network (for example, the Internet) that
                                                 is not assumed to be secure and trusted.



                                                         Let’s CatCh uP


                                                    State whether these statements are true or false.
                                                    1.  Encrypted data can be understood easily.         ________
                    Most of the malware             2.   Computer safety refers to the protection of computer-
                       programs are                    based resources against unauthorised use.         ________
                      distributed over              3.   Antivirus is used to eradicate virus from the computer
                     the Internet, often               system.                                           ________
                     bundled with other             4.   Authentication is the process of verifying a user’s
                          software.                    identity before granting him or her access to

                                                       a computer system.                                ________



                                                            Let’s BaCk-uP

                                                        Computer safety refers to the protection of computer-
                       The first known
                      ransomware, the                 based resources against unauthorised use or physical
                     "AIDS Trojan" was                damage.
                      launched in 1989.                 Authentication is the process of verifying a user’s identity
                                                      before granting him or her access to a computer system.
                                                        Password protection, face recognition, voice recognition are
                                                      some important techniques for computer safety.

                                                        Malware is designed to damage or do unwanted actions on
                                                      a computer system.
                     30th November is                   A set of programs that identify and remove malware are
                   known as “Computer                 known as antivirus software.
                       Security Day’’.
                                                        A firewall is a type of security program or hardware that
                                                      prevents unauthorised access to a computer network.








                     The first computer
                    worm named Morris
                   worm was developed
                    in November 9, 1988.




                  70    Premium Edition-VIII
   67   68   69   70   71   72   73   74   75   76   77