TCS NQT Recursion and Iteration Quiz- 1

Question 1

Time: 00:00:00

Recursion is similar to which of the following?

Switch Case

Loop

If-else

None

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Question 2

Time: 00:00:00

Ashima wants to print a pattern which includes checking and changing a variables value iteratively She decides to use a loop/condition Which of the following options should she use such that the body of the loop/condition is executed atleast once whether the variable satisfies the entering condition or not?

For loop

While Loop

Do while loop

switch case

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Question 3

Time: 00:00:00

The construct

 “if (condition) 

         then A

   else 

         then B”

is for which of the following purposes?

Decision Making

Iteration

Recursion

Object Oriented Programming

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Question 4

Time: 00:00:00

Integer a =40, b =35, c=20, d =10
Comment about the output of the following two statements •

Print a*b/c-d

Print a*b/(c-d)

Comment about the output of the following two statements

Differ by 80

same

Differ by 50

Differ by 160

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Question 5

Time: 00:00:00

What is the output of this C code?

#include <stdio.h> 

int main(){

    printf(“Hello World! %d\n”, x); 

    return 0;

}

Hello World! x;

Hello World! followed by a junk value

Compile time error

Hello World!

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Question 6

Time: 00:00:00

What is the output of the following pseudo code?

int a =456,b,c,d=10;

b=a/d;

c=a-b;

print c;

411.4

411

410

410.4

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Question 7

Time: 00:00:00

How many times the below loop will be executed?

#include<stdio.h>

int main()

{

     int x, y;

    for(x=5;x>=1;x--)

    {

        for(y=1;y<=x;y++)

             printf("%d\n",y);

     }

return 0;

}

15

11

10

12

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Question 8

Time: 00:00:00

What will be the output of the following code:

int main()

 {

     int a=5,b=7;

     switch(a)

     {

        case 5 :printf("I am 5");

                break

        case 7: printf("I am not 5");

                break;

        default:printf("I am different");

     }

return 0;

 }

i am 5

i am not 5

I am different

Error

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Question 9

Time: 00:00:00

Ravi and Rupali are asked to write a program to sum the rows of 2X2 matrices stored in the array A.?
Ravi writes the following code (Code A):

for n = 0 to 1

sumRow1[n] = A[n][1] + A[n][2]

end

Rupali writes the following code (Code B):

sumRow1[0] = A[0][1] + A[0][2]

sumRow1[1] = A[1][1] + A[1][2]

Code A will execute faster than Code B

Code B will execute faster than Code A

Code A is logically incorrect.

Code B is logically incorrect.

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Question 10

Time: 00:00:00

What will be the output of this code snippet ?

#include <stdio.h>

int main ()

{

  int i = 0.7;

  static float m = 0.7;

  if (m == i)

    printf ("We are equal");

  else if (m > i)

    printf ("I am greater");

  else

    printf ("I am lesser");

  return 0;

}</pre