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    f.  Which of the following types of malware primarily infects executable files?
                               (i)  Boot Sector Virus                             (ii)  Macro Virus

                             (iii)  E-mail Virus                                 (iv)  Program File Virus

                      2.  Fill in the blanks using the words from the help box.

                               Norton, Malware, Attachments, Carbon, Signing out, Compose, Domain

                          a.  An e-mail address consists of a username and a _______________ name.
                          b.  The ‘Bcc’ field in an e-mail stands for Blind _______________ Copy.

                          c.  The _______________ option allows users to create a new e-mail message.
                          d.   E-mails can contain files such as documents, audio, videos and pictures as
                             _______________.

                          e.  _______________ from an e-mail account helps prevent others from accessing it.
                          f.   An antivirus program scans all the files, and when an infected file is identified, it tries to
                             remove the _______________.
                          g.  _______________ antivirus is developed and distributed by Symantec Corporation.

                      3.  Answer in one or two words.

                          a.   What is one of the popular uses of the Internet?                             ____________

                          b.   Name the component of an e-mail window where all received messages
                             are displayed.                                                                 ____________

                          c.   Which component of an email window includes a brief introduction
                             about the message being sent to recipients?                                    ____________
                          d.  What should be unique for each email account?                                 ____________

                          e.   Name a virus that targets Word or Excel files.                               ____________
                          f.   What is the term for software that conceals itself inside legitimate
                             software?                                                                      ____________

                      4.  Think and answer.

                          a.  Write down any four advantages of using e-mail for communication.
                             _____________________________________________________________________________
                             _____________________________________________________________________________

                             _____________________________________________________________________________
                             _____________________________________________________________________________

                          b.  How do the uses of ‘Cc’ and ‘Bcc’ differ in an email?
                             _____________________________________________________________________________
                             _____________________________________________________________________________

                             _____________________________________________________________________________
                             _____________________________________________________________________________

                       76   Computer Science (V5.0)-V

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