Sample or model question papers of computer application for standard XI

Will you please sharen with me the sample or model question papers of computer application for standard XI?

[Arun Vats]

As you want to get the sample or model question papers of computer application for standard XI so here it is for you:

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Q.1 [A] Explain functional components of a Computer? 2
[B] Write different between application software and system software. 2
[C]Define Hybrid computer? 1
[D]What function of operating system plays to manage memory. 1
Q.2[A]Write differences between logical errors and syntax errors. 2
[B]What do you mean by robustness of a program. 2
[C]What is guard code. 1
[D]What is the process of translation of the algorithm ,into a program,called?
[E] What are the characteristics of a good program ? 2
[F] Name two types of compilation errors ? 2
Q.3[A]Name the header files to which the following belongs to :
(i) getch( ) (ii) isdigit( ) (iii) sqrt( ) (iv) atoi( ) 2
[B]write output for following code:
int val,n=1000,; 2
cin>>val;
res=n+val>1500?100:200;
cout<<res;
i) If the input is 1000.
ii) If the input is 200.
[C] Write the equivalent c++ expressions- 2
(1) p=2(l+b)
(2) z=2(p/q)2
(3) s=1/2mv2
(4) x=-b+√(b2-4ac) /2a
[D] Write difference between keyword and identifier. 2
Q.4[A] Draw a flowchart that print the smallest of three given no. 2
[B] Rewrite the following program after removing syntactical errors,underline each 2
Correction.
# include<iostream.h>
Void main( )
{
const MAX = 0 ;
int a, b;
cin<<a>>b;
if(a > b )
MAX = a;
for(x=0;x<MAX; x++)
cout<<x;
}
[C] Write a program in c++ to print Fibonacci series:- 3
0,1,1,2,3,5,8 …………….
[D] Write a program in c++ to find out factorial of a given no. 3
Q.5 [A] Write a program in c++ to replace every space in a string with hyphen. 2
[B] Find the total no. of elements and total size of the following array: 2
(i) int student[20] (ii) float A[4][5]

[C] Rewrite the following program after removing syntactical errors,underline each 2
Correction.
#include<iostream.h>
main()
{
int sum[2,4];
for(i=0;i<2;i++)
for(j=0;j<=3;i++)
{ cout<<sum;
}
[D] Find out the output for the following program: 4
#include<iostream.h>
main()
{
int a[5]= {5,10,15,20,25};
int i, j,k=1,m;
i = ++a[1] ;
j= a[2]++;
m= a[i++};
cout<<i<<j<<k<<m;
}
[E] Write a program in c++ to find row and column sum of a matrix . 3
[F] Give the proper array declaration for the following :- 2
(i) Declare an integer array A which can hold 30 values.
(ii) declare a two dimensional array called MIN ,4* 5 of integer.
Q.6[A] What are the 3 steps using a function . 3
[B] Find the output of the following program: 2
#include<iosteam.h>
void Execute (int& x,int y=200)
{
int temp = x + y;
x+ = temp;
if(y!=200)
cout<<temp<<x<<y;
}
main( )
{
int a = 50,b=20;
Execute(a,b);
cout<<a<<b;
}
[C] Write a function in C ++ having 2 parameters x and n of integer type with result
type float to find the sum of following series :-
1 + x/2! + x2/ 3! +…………………..+xn/n+1! 3
[D] Write a program to calculate the sum of n natural numbers by using function. 3
Q. 7[A] Convert the following into its binary equivalent codes. 4
(i) (84)10 = (?)2
(ii) (2C9)16 = (?)10
(iii) (101010)2= (?)10
(iv) (3674)8 =(?)2
[B] Express -4 in 1’s complement form. 1
[C] What is the function of a bus . 1
[D] Write two types of cache memory. 2
[D] write difference between SRAM and DRAM. 2
************************************************** ********************

Sub: Computer Science Time-3hrs.
Q.1[A] 1 mark for giving names of functional units(input/output/memory)
1 mark for explanation of the working of functional units.
[B].2 marks for any 2 correct differences.
[C].1 mark for correct definition of hybrid computer.
[D]. 1 mark for correct answer (memory management system)
Q.2[A]. 2 mark for any 2correct differences
[B]. 2 mark for correct definition.
[C]. 1 mark for correct definition.
[D]. 1 mark for correct answer (coding).
[E]. 2 marks for any 2 characteristics of good program with explanation.
[F]. 2 marks for correct answer that are
1. Syntax error
2. Semantic error
Q.3[A]. Name the header file for which the following belongs to :-
1. getch() – conio.h
2. isdigit() – ctype.h
3. sqrt() – math.h
4. atoi() – stdlib.h
1/2 Mark for each correct answer
[B].Output will be
1. 100
2. 200
1 mark for each correct answer
[C] Equivalent expressions are :-
a) p=2*(l+b);
b) z=2*pow((p/q),2)) or 2*p/q*p/q;
c) s=1/2*m*v*v; or s=1/2*m*pow(v,2);
d) x=-b+sqrt(b*b-4*a*c)/2*a; or x=-b+sqrt(pow(b,2)-4*a*c)/2*a;
1/2 Mark for each correct answer
[D] 2 marks for any 2 correct differences
Q.4 [A]. 2 Marks for correct flowchart.
[B] void main()
{
const int MAX=0;
int a,b;
cin>>a>>b;
if (a>b)
MAX= a;
for(x=0;x<MAX; x++) // x is an undefined symbol
cout<<x;
½ mark for each correction
[C]. 3 marks for writing correct program
(
½ mark for including correct header file
½ mark for declaring variables
½ mark for assigning values
1 mark for correct logic
½ mark for print series
)
[D]. 3 marks for writing correct program
(
½ mark for including correct header file
½ mark for declaring variables
½ mark for enter variable/number
½ mark for correct loop
½ mark for correct logic
½ mark to print factorial of given no.
)
Q.5[A] 2 mark for writing correct program :-
(
½ mark for including correct header file
½ mark for entering string
1 mark for correct logic & correct result
)
[B] ½ mark for each correct answer
a) total no. of elements = 20
total size = 20*2 = 40 bytes
b) total no. of elements =4*5=20
total size =4*4*5= 80 bytes
[C] main()
{
int sum[2][4];
for (int i=0; i<2; i++)
{
for (int j=0; j<=3 ; j++)
}
cout<<sum[i][j];
}
½ mark for each correction
[D] 1 mark for each correct answer
12,15,1,0
[E] 3 marks for writing correct program :-
(
½ mark for including correct header files.
½ mark for declaring variables
½ mark for reading an array
½ mark for calculating column sum
½ mark for calculating row sum
½ mark to print row sum & column sum
)
[F] 1 marks for each correct declaration :-
(i) int A[30];
(ii)int MIN[4][5];
Q.6[A] 1 mark for each correct step:
i)function declaration.
ii)function definition.
iii)function calling.
[B] 1 mark for each correct answer
(i) a= 120
(ii)b=20
[C]
3 marks should be given for correct definition of function
• ½ mark for correct function header file
• ½ mark for declaring variables.
• ½ mark for correct logic for calculating factorial
• 1 mark for correct logic for calculating sum of terms
• ½ mark for return sum.
[D] void total ( int n)
{
int i,sum ;
sum =0;
for(i =1;i<=n;i++ )
{
sum =sum + i;
}
cout<<”sum of natural numbers is”<<sum;
}
3 marks should be given for correct definition of function
• ½ mark for correct function header file
• ½ mark for declaring variables.
• ½ mark for assign 0 to sum;
• 1 mark for correct logic for calculating sum
• ½ mark for print sum
Q.7[A] 1 Mark for each correct answer :
(i) (84)10 = (1010100)2
(ii) (2C9)16 = (713)10
(iii)(101010)2 = (42)10
(iv) (3674)8 =(11110111100)2
[B] 1 Mark for finding correct complement of number
[C] 1 Mark for correct function of bus
[D] 1 Mark for each correct type
[E] 2 Mark for any 2 correct differences between SRAM and DRAM


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