C Objective Questions And Answers Page 2 of 10

Question: 26

How may times CppBuzz.com is printed?
int main()
{
int a = 0;
while(++a++);
{
    printf("CppBuzz.com");
}

return 0;
}

(A) 1 time
(B) 0 time
(C) Infinite Times(Until Stack overflows)
(D) Error: Lvalue Required

Explanation on:
C Compiler IDE
Level: Beginner Category: loops

Question: 27

How many times CppBuzz.com is printed?
int main()
{
int a = 0;
while(++a)
{
    printf("CppBuzz.com");
}

return 0;
}

(A) 1 time
(B) It depends on the size of int
(C) Infinite Times(Until Stack overflows)
(D) Error

Explanation on:
C Compiler IDE
Level: Beginner Category: loops

Question: 28

How many times CppBuzz.com is printed?
int main()
{
int a = 0;
while(a)
printf("CppBuzz.com");

return 0;
}

(A) 1 time
(B) Compilation Error
(C) 0 time
(D) Infinite Times(Until Stack Overflows)

Explanation on:
C Compiler IDE
Level: Beginner Category: loops

Question: 29

How many times CppBuzz.com is printed?
int main()
{
int a = 0;
while(a++)
printf("CppBuzz.com");

return 0;
}

(A) 1 time
(B) 0 time
(C) Infinite times(Until Stack is overflow)
(D) 2 times

Explanation on:
C Compiler IDE
Level: Beginner Category: loops

Question: 30

How many times CppBuzz.com is printed?

int main()
{
int a = 0;
while(a++ < 5)
printf("CppBuzz.com");
return 0;
}

(A) 4 times
(B) 5 times
(C) 0 time
(D) Infinite times

Explanation on:
C Compiler IDE
Level: Practitioner Category: loops

Question: 31

How many times CppBuzz.com is printed?
int main()
{
int a = 0;
while(a++ < 5-++a)
printf("CppBuzz.com");
return 0;
}

(A) 5 times
(B) 4 times
(C) 2 times
(D) 1 time

Explanation on:
C Compiler IDE
Level: Expert Category: loops

Question: 32

int main()
{
    int x;
    x=10,20,30;
    printf("%d",x);
    return 0;
}

(A) 10
(B) 20
(C) 30
(D) Compilation Error

Explanation on:
C Compiler IDE
Level: Expert Category: operators

Question: 33

int main()
{
    int a = 320;
    char *ptr;
    ptr =( char *)&a;
    printf("%d",*ptr);
    return 0;
}

(A) 320
(B) 60
(C) 160
(D) 64

Explanation on:
C Compiler IDE
Level: Practitioner Category: pointers

Question: 34

int main()
{
    char arr[5]="The CppBuzz.com";
    printf("%s",arr);
    return 0;
}

(A) The CppBuzz.com
(B) The C
(C) The CppBuzz
(D) Compilation Error

Explanation on:
C Compiler IDE
Level: Practitioner Category: datatype

Question: 35

int main()
{
    int a = 5;
    int b = 10;
    int c = a+b;
    printf("%i",c);
}

(A) 0
(B) 15
(C) Undefined i
(D) Any other Compiler Error

Explanation on:
C Compiler IDE
Level: EXpert Category: datatype

Question: 36

int main()
{
	int _ = 10;
	int __ = 20;
	int ___ = _ + __;
	printf("__%d",___);
	return 0;
}

(A) Compilation Error
(B) Runtime Error
(C) __0
(D) __30

Explanation on:
C Compiler IDE
Level: Expert Category: datatype

Question: 37

int main()
{
    int a = 10.5;
    printf("%d",a);
    return 0;
}

(A) 10.5
(B) 10
(C) 0
(D) Compilation Error

Explanation on:
C Compiler IDE
Level: Beginner Category: datatype

Question: 38

Which of the following is executed by Preprocessor?

(A) #include<stdio.h>
(B) return 0
(C) void main(int argc , char ** argv)
(D) None of above

Explanation on:
C Compiler IDE
Level: Beginner Category: datatype

Question: 39

What should be the output:
int main()
{ 
    int a = 10/3;
    printf("%d",a); 
    
    return 0;
}

(A) 3.33
(B) 3.0
(C) 3
(D) 0

Explanation on:
C Compiler IDE
Level: Beginner Category: datatype

Question: 40

int main()
{ 
    int a = printf ("CppBuzz.com");
    printf("%d", a);
    return 0;
}

(A) Compilation Error
(B) 0
(C) CppBuzz.com
(D) CppBuzz.com11

C Compiler IDE
Level: Beginner Category: function

Question: 41

Which programming language is more faster among these?

(A) Java
(B) PHP
(C) C
(D) Visual Basic

C Compiler IDE
Level: Beginner Category: other

Question: 42

//This program is compiled on 32 bit DEV-C++ 
int main()
{

char *ptr1, *ptr2;
printf("%d %d", sizeof(ptr1), sizeof(ptr2));

return 0;
}

(A) 1 1
(B) 2 2
(C) 4 4
(D) Undefined

C Compiler IDE
Level: Beginner Category: pointers

Question: 43

int x = 10;

int main()
{
    int x = 0;
    printf("%d",x);
    return 0;
}

(A) 10
(B) 0
(C) Compilation Error
(D) Undefined

C Compiler IDE
Level: Expert Category: datatype

Question: 44

int main()
{
     int x = 10;
	{
	    int x = 0;
	    printf("%d",x);
	}
    return 0;
}

(A) 10
(B) Compilation Error
(C) 0
(D) Undefined

C Compiler IDE
Level: Beginner Category: loops

Question: 45

Is the following statement a declaration or definition

extern int i;

(A) Declaration
(B) Definition

C Compiler IDE
Level: Beginner Category: storgeclass

Question: 46

int main()
{
extern int i;
i = 20;
printf("%d", sizeof(i));
return 0;
}

(A) 20
(B) 0
(C) Undefined reference to i
(D) Linking Error

C Compiler IDE
Level: Beginner Category: storgeclass

Question: 47

Is it true that a function may have several declaration, but only one definition.

(A) True
(B) False

C Compiler IDE
Level: Practitioner Category: function

Question: 48

What is sizeof() in C?

(A) Operator
(B) Function
(C) Macro
(D) None of these

C Compiler IDE
Level: Expert Category: operators

Question: 49

How many main() function we can have in our project?

(A) 1
(B) 2
(C) No Limit
(D) Depends on Compiler

C Compiler IDE
Level: Beginner Category: function

Question: 50

Is it possible to run program without main() function?

(A) Yes
(B) No

C Compiler IDE
Level: Beginner Category: function

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