100 MCQ on C Programming

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Question: 21

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

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

Compiler
Level: BeginnerCateogry: function
[Posted by: Admin | Chicago, USA]

Question: 22

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

Compiler
Level: BeginnerCateogry: datatype
[Posted by: Admin | Chicago, USA]

Question: 23

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

Compiler
Level: BeginnerCateogry: datatype
[Posted by: Admin | Chicago, USA]

Question: 24

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

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

Compiler
Level: BeginnerCateogry: datatype
[Posted by: Admin | Chicago, USA]

Question: 25

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

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

Compiler
Level: ExpertCateogry: datatype
[Posted by: Admin | Chicago, USA]

Question: 26

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

Compiler
Level: EXpertCateogry: datatype
[Posted by: Admin | Chicago, USA]

Question: 27

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

Compiler
Level: PractitionerCateogry: datatype
[Posted by: Admin | Chicago, USA]

Question: 28

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

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

Compiler
Level: PractitionerCateogry: pointers
[Posted by: Admin | Chicago, USA]

Question: 29

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

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

Compiler
Level: ExpertCateogry: operators
[Posted by: Admin | Chicago, USA]

Question: 30

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

Compiler
Level: ExpertCateogry: loops
[Posted by: Admin | Chicago, USA]

Question: 31

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

Compiler
Level: PractitionerCateogry: loops
[Posted by: Admin | Chicago, USA]

Question: 32

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

Compiler
Level: BeginnerCateogry: loops
[Posted by: Admin | Chicago, USA]

Question: 33

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)

Compiler
Level: BeginnerCateogry: loops
[Posted by: Admin | Chicago, USA]

Question: 34

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

Compiler
Level: BeginnerCateogry: loops
[Posted by: Admin | Chicago, USA]

Question: 35

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

Compiler
Level: BeginnerCateogry: loops
[Posted by: Admin | Chicago, USA]

Question: 36

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

return 0;
}

(A) 0 time
(B) 1 time
(C) Compilation Error
(D) Infinite times

Compiler
Level: PractitionerCateogry: loops
[Posted by: Admin | Chicago, USA]

Question: 37

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

return 0;
}

(A) Nothing is printed on screen
(B) 0 time
(C) 1 time
(D) Infinite times (Untill Stack overflow)

Compiler
Level: PractitionerCateogry: loops
[Posted by: Admin | Chicago, USA]

Question: 38

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

return 0;
}

(A) 0 times
(B) Infinite times (Untill Stack is overflow)
(C) 1 time
(D) Nothing is printed

Compiler
Level: ExpertCateogry: loops
[Posted by: Admin | Chicago, USA]

Question: 39

What is printed on console?
int main()
{
int a = 0;
while(a)
{
    printf("CppBuzz.com");
}

return 0;
}

(A) CppBuzz.com is printed Infinite times
(B) CppBuzz.com is printed 1 time only
(C) Nothing is printed
(D) Program gives error

Compiler
Level: PractitionerCateogry: loops
[Posted by: Admin | Chicago, USA]

Question: 40

How many times CppBuzz.com is printed?
int main()
{
while(1);
{
    printf("CppBuzz.com");
}

return 0;
}

(A) 1 time
(B) 0 time
(C) Compilation/Runtime Error
(D) Blank Screen in Infinite Loop

Compiler
Level: PractitionerCateogry: loops
[Posted by: Admin | Chicago, USA]

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