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Question: 141

What is important difference between structure & union?

(A) There is no difference
(B) Union takes less memory
(C) Union is faster
(D) Structure is faster

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Level: Expert Category: structure

Question: 142

Is it necessary that all elements of structure should be different in size?

(A) Yes
(B) No

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Level: Practitioner Category: structure

Question: 143

Can we use access specifiers(private, public, protected) with structures?

(A) Yes
(B) No

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Level: Practitioner Category: structure

Question: 144

Is it mandatory that the size of all elements in a union should be same?

(A) Yes
(B) No

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Level: Practitioner Category: union

Question: 145

Are self referential structures are possible in C?

(A) Yes
(B) No

C Compiler IDE
Level: Beginner Category: structure

Question: 146

#include <stdio.h>

int main()
{
struct xyz{
int a;
};

struct xyz obj1={1};
struct xyz obj2 = obj1;
printf("%d", obj2.a);
obj2.a = 100;
printf("%d", obj1.a);
return 0;
}

(A) 1100
(B) 11
(C) 0100
(D) 10

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Level: Practitioner Category: structure

Question: 147

Can we compare two structures using any built in operator?

(A) Yes
(B) No

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Level: Expert Category: structure

Question: 148

Which predefined function is used to write whole structure into a file ?

(A) write()
(B) fwrite()
(C) swrite()
(D) None of the above

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Level: Expert Category: structure

Question: 149

How to minimize the padding issues with structure?

(A) Order members from largest to smallest
(B) Order memebers from smallest to largest
(C) By using only char data type
(D) By using referencial pointer

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Level: Expert Category: operators

Question: 150

The output of Assembler in process of compilation is

(A) Assembly Code
(B) Object Code
(C) Executable
(D) .i file

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Level: Practitioner Category: assembler

Question: 151

The input to the Assembler in the compilation process is

(A) Assembly Code
(B) .i file produced by Preprocessor
(C) Object Code
(D) Source Code

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Level: Expert Category: assembler

Question: 152

What does .txt section contains?

(A) Executable Instructions
(B) Un-initialized Global Variables
(C) Un-initialized Static Variables
(D) Initialized Static & Global Variables

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Level: Expert Category: compilation

Question: 153

What will be the output of following code?
#include<stdio.h>

int main()
{
int a=4*4+2;
printf("%d",--a);
return 0;
}

(A) 17
(B) 23
(C) 24
(D) 18

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Level: Beginner Category: loops

Question: 154

#include <stdio.h>

void decrement();

int main()
{
decrement();
decrement();
decrement();
return 0;
}

void decrement()
{
 static int i = 5;
 printf("%d",i);
 i--;
}

(A) 555
(B) 543
(C) 545
(D) 544

C Compiler IDE
Level: Practitioner Category: function

Question: 155

Find the output of below code. Is it a++ or ++b in statement a+++b.

#include <stdio.h>

int main()
{
    int a=5, b=2;
    printf("%d", a+++b);

    return 0;
}

(A) Compilation Error
(B) 8
(C) 7
(D) 0

C Compiler IDE
Level: Expert Category: operators

Question: 156

#include <stdio.h>

int main()
{
printf("%d",printf("HELLO"));

return 0;

}

(A) Compilation Error
(B) Hello
(C) 5Hello
(D) Hello5

C Compiler IDE
Level: Practitioner Category: function

Question: 157

Find the output if n is 6

#include <stdio.h>

int main()
{
  int sum=0, i, j,n;
  n=6;
  
  for(i=1; i<=n; i++){      
      for(j=1; j<=n; j++){
          sum += (i+j);
      }
  }

printf("%d", sum);

return 0;
}

(A) 150
(B) 168
(C) 195
(D) 252

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Level: Beginner Category: loops

Question: 158

int main()
{
  int a = 1;
  short int  b = 2;
  float c = 3;
  if(sizeof((a == 2) ? c : b) == sizeof(float))
  {
     printf("float");
  }
  else   if(sizeof((a == 2) ? c : b) == sizeof(short int))
  {
     printf("short int");
  }
return 0;                                                                                                             
}

(A) float
(B) short int
(C) nothing
(D) compilation error

C Compiler IDE
Level: Expert Category: operators

Question: 159

#include "stdio.h"
main()
{
int a[] = {10,20,30};
printf("%d",*a+1);
}

(A) 10
(B) 20
(C) 11
(D) 21

C Compiler IDE
Level: Beginner Category: loops

Question: 160

#include <stdio.h>
int main(void)
{
    char str1[] = "Hello. How are you?";
    char str2[21];
    int pos;

    for(pos=0; pos<21; pos++);
   {
      str2[pos] = str1[pos];
   }
   
   printf("str1: %s, str2: %s", str1, str2);
   return 0;
}

(A) str1: Hello. How are you?, str2: Hello. How are you?
(B) str1: Hello. How are you?, str2: Hello. How are you?nullnull
(C) str1: Hello. How are you?, str2: Hello. How are you?garbagevalue
(D) str1: Hello. How are you?, str2: garbagevalue

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Level: Expert Category: arrays

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