CBSE Class 12 Computer Science Question paper 2007 (1)

CBSE Class 12 Computer Science Question paper 2007 (1). Students can download the last year question papers using the link below. Free download of examination question papers with solutions.Last 10 year question papers should be practised to get better marks in examinations. 

1.       (a) Write a function in C++ which accepts an integer array and its size as arguments and replaces elements

               having odd values with thrice its value and elements having even values with twice its value.

               Example : if an array of five elements initially contains the elements as

                               3, 4, 5, 16, 9

               then the function should rearrange the content of the array as

                               9, 8, 15, 32, 27 4                                                                                            

          (b) An array Array[20][15] is stored in the memory along the column with each element occupying 8 bytes.

               Find out the Base Address and address of the element Array[2][3] if the element Array [4] [5] is

               stored at the address 1000.                                                                                             

          (c) Write a function in C++ to delete a node containing Book’s information, from a dynamically allocated

               Stack of Books implemented with the help of the following structure.                                   

               struct Book 

                }

                     int BNo;

                     char BName[20];

                     Book *Next;

                };

          (d) Write a function in C++ which accepts a 2D array of integers and its size as arguments and displays the

               elements which lie on diagonals.                                                                                      

               [Assuming the 2D Array to be a square matrix with odd dimension

               i.e. 3×3, 5×5, 7×7 etc.]

               Example, if the array content is

               5 4 3

               6 7 8

               1 2 9

               Output through the function should be :

               Diagonal One : 5 7 9

               Diagonal Two : 3 7 1

          (e) Evaluate the following postfix notation of expression :                                                         

               25   8   3   -   /   6   *   10    +

2.       (a) Differentiate between primary key and alternate key.                                                           

          (b) State Distributive law and verify the same using truth table.

          (c) Write the equivalent Canonical Sum of Product expression for the following Product of Sum Expression                                                                                                                                                     

                          F(X,Y,Z) = p (1,3,6,7)

3.       (a) What is the significance of Cyber law ?                                                                              

         (b) Expand the following terms with respect to Networking :                                                      

              (i) CDMA                (iii) FTP

              (ii) WLL                  (iv) HTML

         (c) Which of the following unit measures the speed with which data can be transmitted from one node to

              another node of a network? Also, give the expansion of the suggested unit.                            

              (i) Mbps

              (ii) KMph

              (iii) MGps

Please click the link below to download pdf file of CBSE Class 12 Computer Science Question paper 2007 (1).