TCS NQT Input/Output Quiz- 7

Question 1

Time: 00:00:00
What will be the output of the following program?

#include 

int a=10;

int main ()

{

  int a = 20;

  cout <<::a;

  return 0;

}

10

10

20

20

::10

::10

::20

::20

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Question 2

Time: 00:00:00
What will be the output of following programs?





#include >iostream>

using namespace std;

int main()

{

  cout <<P"includehelp.com";

  return 0;

}

Compile Time Error

Compile Time Error

Run Time Error

Run Time Error

includehelp.com

includehelp.com

None of these.

None of these.

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Question 3

Time: 00:00:00
Which header file is required to use setw() function?

conio.h

conio.h

iostream.h

iostream.h

stdlib.h

stdlib.h

iomanip.h

iomanip.h

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Question 4

Time: 00:00:00
Which is the correct answer regarding '\n' and endl?

Both are same.

Both are same.

'\n' and endl both are used to print new line but endl flushes the buffer after printing new line.

'\n' and endl both are used to print new line but endl flushes the buffer after printing new line.

'\n' and endl both are used to print new line but '\n' flushes the buffer after printing new line.

'\n' and endl both are used to print new line but '\n' flushes the buffer after printing new line.

'\n' used in C programming while endl used in C++ programming.

'\n' used in C programming while endl used in C++ programming.

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Question 5

Time: 00:00:00
To print out a and b given below, which of the following printf() statement will you use?

#include

float a=3.14;

double b=3.14;

printf("%f %lf", a, b);

printf("%f %lf", a, b);

printf("%Lf %f", a, b);

printf("%Lf %f", a, b);

printf("%Lf %Lf", a, b);

printf("%Lf %Lf", a, b);

printf("%f %Lf", a, b);

printf("%f %Lf", a, b);

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Question 6

Time: 00:00:00
Will the following program work.




#include<stdio.h>

int main()

{

    int n=5;

    printf("n=%*d\n", n, n);

    return 0;

}



Yes
 
Yes
 

	
No
 
No
 

	
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Question 7
Time: 00:00:00
What will be the output of this code?


#include <iostream>

using namespace std;

int main()

{

int a=-5;

int k=(a++,++a);

printf("%d\n",k);

return 0;

}
-3
 
-3
 

	
5
 
5
 

	
-6
 
-6
 

	
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Question 8
Time: 00:00:00
What will be the output of the following code 


#include <iostream>

using namespace std;

int main()

{

   if(7&8)

   printf("Honesty");

   if((~7 & 0x000f)==8)

   printf("is the best policy\n");

}
Honesty
 
Honesty
 

	
No output
 
No output
 

	
is the best policy
 
is the best policy
 

	
error
 
error
 

	
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Question 9
Time: 00:00:00
What will be the output of the following code?





#include <iostream>

using namespace std;

int main()

{

 int b=5&4&6;

 printf("%d",b);

}
4
 
4
 

	
2
 
2
 

	
3
 
3
 

	
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Question 10
Time: 00:00:00
What will be the output of the following code





char * getString () 

{

char *str = "Nice test for strings";

return str;

}

int main () 

{

  printf ("%s", getString ());

  getchar ();

  return 0;

}



Nice test for strings
 
Nice test for strings
 

	
for strings
 
for strings
 

	
No output
 
No output
 

	
Error
 
Error
 

	
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September 21, 2021