Page 79 - Web Applications (803) Class 12
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8.  What do you understand by function? Name and define the various functions Calc provides.
                    Ans.   A function is a pre-defined formula that performs calculations with specific values in a specific order. One of the
                        primary advantages of functions is that they can save your time because you do not have to write the formula yourself.
                        Calc has various functions to help you with your calculations.

                        i.  SUM: To calculate the sum of a given range of numbers
                        ii.  MAX: To find the maximum number from a given range of numbers
                        iii.  MIN: To find the minimum number from a given range of numbers
                        iv.  AVERAGE: To find the average value of a given range of numbers
                    9.  What are the advantages of spreadsheets?
                    Ans.   Spreadsheet programmes have grown in popularity due to the following benefits:
                        i.  Built-in functions make calculations easier, faster, and more accurate.
                        ii.  Large amounts of data can be handled and manipulated with ease.
                        iii.  Data can be exported to or imported from other applications.
                        iv.  Data can be easily represented in pictorial form, such as graphs or charts.
                        v.  Formulae are automatically recalculated when the underlying data values change.
                    10.  Differentiate between Undo and Redo.
                    Ans.   While working in the worksheet, ‘Undo’ command helps the user to reverse the series of actions and ‘Redo’ helps to
                        reverse the actions that have been executed by the ‘Undo’ action.

                        Pressing ‘Ctrl+Z’ or by clicking on the ‘Undo’ option from the ‘Edit’ menu or by clicking on the ‘Undo’ button from the
                        standard toolbar, we can undo. Pressing ‘Ctrl+Y’ or by clicking on the ‘Redo’ option from the ‘Edit’ menu or by clicking
                        on the ‘Redo’ button from the standard toolbar, we can redo.

                 B.  Competency-based/Application-based questions:
                     Muskan has done market analysis for the launch of a new product. Now she has to showcase her analysis to the board
                     members where she works. How should Muskan showcase her results?
                   Ans. Muskan should showcase her results  using a presentation software. She should include graphs for her analysis  and
                     transitions and animations to make her presentation appeasing to all.




                                                       Unsolved Questions

                                                   SECTION A (Objective Type Questions)
                       uiz
                 A.  Tick ( ) the correct option.

                    1.  You have a summer vacation project on how to make biogas. You have done a lot of research, clicked pictures of
                        biogas plants and taken videos of people who use biogas. Now, you have to make a presentation before the class.
                        What would you use?                                                                       [NCERT]

                        a.  Chart paper                                  b.   Word document
                        c.   Presentation software                       d.   Spreadsheet
                    2.  Which is the correct step for printing a presentation?                                    [NCERT]

                        a.  File → Print                                 b.   File → Print → Handout
                        c.   File → Print → Handout → OK                 d.   File → OK




                                                                                                 ICT Skills-IV  77
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