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100 MCQ on C Programming

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Question: 61

Will compiler produce any compilation error if same header file is included two times?

(A) Yes
(B) No

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

Question: 62

Which of the following ways are correct to comment out preprocessing of any line?

(A) -- #include<stdio.h>
(B) // #include<stdio.h>
(C) ''#include<stdio.h>
(D) ##include<stdio.h>

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

Question: 63

What should be the output of below program?

#define # @
@include "stdio.h"

int main()
{
 	printf("CppBuzz.com");
 	return 0;
}

(A) CppBuzz.com
(B) Nothing
(C) Compilation Error
(D) Depends on Compilor

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

Question: 64

Does this program get compiled successfully?

#include stdio.h

int main()
{
	printf("CppBuzz.com");
	return 0;
 	
}

(A) Yes
(B) No
(C) Depends on Compiler

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

Question: 65

What should be the output of below program ?

##include "stdio.h"

int  main()
{
	printf("CppBuzz.com");
return 0; 	
}

(A) CppBuzz.com
(B) No output
(C) Compilation Error in preprocessing
(D) None of above

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

Question: 66

Which one of the following is invalid macro in C programming?

(A) #pragma
(B) #error
(C) #ifndef
(D) #elseif

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

Question: 67

Which of the following ways are correct to include header file in C program?

(A) #include<stdio.h>
(B) #include"stdio.h"
(C) Both A & B

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

Question: 68

Which of the following ways can be used to include header file in C programs?

(A) #include<stdio.h>
(B) #include"stdio.h"
(C) Both A & B

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

Question: 69

Which of the following ways are correct to include header file in C program?

(A) #include<stdio.h>
(B) #include"stdio.h"
(C) Both A & B

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

Question: 70

__FILE__ is predefined macro and contains the current filename as a string. Is this true/false?

(A) Yes
(B) No

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

Question: 71

What is the extension of output file produced by Preprocessor?

(A) .h
(B) .exe
(C) .i
(D) .asm

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

Question: 72

Is there any limit in adding no of header files in program?

(A) Yes
(B) No

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

Question: 73

Which compilation unit is responsible for adding header files content in the source code?

(A) Linker
(B) Compiler
(C) Assembler
(D) Preprocessor

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

Question: 74

Preprocessor includes content of header files added in source code?

(A) Yes
(B) No

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

Question: 75

In compilation process at what sequence Preprocessor comes into picture?

(A) 1
(B) 2
(C) 3
(D) 4

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

Question: 76

What is the Latest Version of C Language?

(A) C11
(B) C99
(C) C95
(D) C89

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

Question: 77

The ASCII code of ‘0’ (zero) is?

(A) 48D
(B) 32H
(C) 0011 1000
(D) 42H

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

Question: 78

The ASCII code of ‘A’ is?

(A) 66D
(B) 41H
(C) 0100 0010
(D) 0110 0011

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

Question: 79

Numbers are stored and transmitted inside a computer in which format?

(A) binary form
(B) ASCII code form
(C) decimal form
(D) alphanumeric form

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

Question: 80

#include <stdio.h>

char * f();
char a = 'a';

int main(int argc, char *argv[])
{	
char *temp = f();
printf("%%", temp);
return 0;
}

char *f()
{ 
return &a;
}

(A) a
(B) %a
(C) %%
(D) %

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

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