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B.  Fill in the blanks.

                      1.  A computer displays the results of the processed data through the ............................. .
                      2.  In binary subtraction, 1-1 equals to ............................. .

                      3.  A set of programs that identify and remove malware is known as ................................ software.

                      4.  ................................  are offences that are committed using computers and smart devices.
                      5.  ................................ bar is  used to enter  and edit formulas and perform calculations on your
                         worksheet data.

                     6.  We can apply a style to the cells by using the ................................ command in the Styles group under
                         the Home tab.

                  C.  Write ‘T’ for true and ‘F’ for false.

                      1.  Mouse is the brain of a computer.                                            ................................
                      2.  The base of the decimal number system is 10.                                 ................................

                      3.  A worm slows down the functioning of a computer.                             ................................

                      4.  We cannot delete the browsing history of a browser.                          ................................
                      5.  We should use the content written by others without their permission.        ................................

                      6.  We cannot select more than one cell at a time in an Excel worksheet.         ................................


                                                              Section B

                  A.  Short answer type questions:
                      1.  What do you understand by the number system?

                      2.  What is the full form of modem?
                      3.  What is macro virus?

                      4.  Write two ways to stop cyberbullying.

                      5.  What is a name box in Excel?
                      6.  Which feature of Excel allows us to display multiple lines of text inside a cell?

                  B.  Long answer type questions:

                      1.  What is the difference between input and output devices?
                      2.  How can we convert a binary number into a decimal number? Give an example.

                      3.  Write any two symptoms of an infected computer.

                      4.  Write the Indian laws and government initatives that enforce cybersecurity.
                      5.  What is the difference between a workbook and a worksheet?

                      6.  What are certain rules of precedence while performing calculations using a formula in Excel?







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