CBSE Class 11 Computer Science Sample Paper Set Y

Read and download PDF of CBSE Class 11 Computer Science Sample Paper Set Y designed as per the latest curriculum and examination pattern for Class 11 issued by CBSE, NCERT and KVS. The latest Class 11 Computer Science Sample Papers have been provided with solutions so that the students can solve these practice papers and then compare their answers. This will help them to identify mistakes and improvement areas in Computer Science Standard 11 which they need to study more to get better marks in Grade 11 exams. After solving these guess papers also refer to solved Class 11 Computer Science Question Papers available on our website to build strong understanding of the subject

Q1) a) What is significance of My Computer ? 

      b) Explain different types of operating systems . 

      c) What is an Operating System? Explain its any two functions 

      d) How is a compiler different from interpreter? 

     e) Convert

            (i) ( 10.10)10= ( ? )2

            (ii) (101011.1110)2 =( ? )10 

Q2)a) What do you mean by run time error? 

     b) what is the deference between if and if – else statement 

     c) Mention and explain briefly any three characteristics of a good program 

     d) How can you give a single line and multiline comments in C++ explain with suitable examples 

  e) what do you mean by header files? What is the difference between #include <iostream.h> and #include”iostream.h” 

Q3)a) Classify the following variable names of c++ into valid and invalid category 

     (i) 1no         (ii) num 1      (iii) num        (iv) num1num      (v) num+1     (vi) num.

     b) Give output of following code. 


       int m=5; void check();

       void main( )

           { int m=20;


                  int m=10*::m;


              } check();


                check(); cout<<"::m="<<::m<<"m="<<m<<endl;


              void check()

                 { ++m;


     c) What will be result of following statements if a=5 , b=5 initially 

     (i) ++a<=5       (ii) b++<=5

     d)Name the header file(s) that shall be needed for successful compilation of the following C++ code. 

          void main( )


                    char name[40];


                    puts(name); }

     e) Explain conditional operator (?) with example in c++ . 

     f) What is difference between ‘/’ and ‘%’ operators in c++ ? explain with a example

Q4)a) What do you mean by function prototype in C++ 

     b) Explain Break and Continue statement in C++ with example. 

     c) Find syntax error(s) if any in following program ( Assume all header files are present) 


            { int c;

              switch( c );

              case 1.5: { cout<<” India is great\n”;

            } break;

        ‘case’ 2: { cout<<” hello\n”;

              } break;

              } // end of main

              } // end of switch

     d) How will you declare and define 

     i)Array named mark with 10 integer values

     ii)array named avg with 8 float values

     e) Convert following while loop to for loop 

              int x=0;


                { cout<<” the value of x is \n”<<x;

                  cout<<”done \n”;



      f ) Define token ? 

     g) What is the difference between call by value and call by reference explain with suitable example 

     h)Find the output of the following program; 

Please refer to attached file for CBSE Class 11 Computer Science  Sample Paper Set Y



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