Pointers - C Questions

Pointers Questions - 1 Pointers Questions - 2 Pointers Questions - 3 Pointers Questions - 4 Pointers Questions - 5 Pointers Questions - 6 Pointers Questions - 7 Pointers Questions - 8

Data Types - C Questions

Data Types Questions - 1 Data Types Questions - 2 Data Types Questions - 3 Data Types Questions - 4 Data Types Questions - 5

Operators - C Questions

Operators Questions - 1 Operators Questions - 2 Operators Questions - 3 Operators Questions - 4 Operators Questions - 5

Structures - C Questions

Structures Questions - 1 Structures Questions - 2 Structures Questions - 3 Structures Questions - 4 Structures Questions - 5

Files - C Questions

Files Questions - 1 Files Questions - 2 Files Questions - 3 Files Questions - 4 Files Questions - 5

printf - C Questions

printf Questions - 1 printf Questions - 2 printf Questions - 3 printf Questions - 4 printf Questions - 5

Variables - C Questions

Variables Questions - 1 Variables Questions - 2 Variables Questions - 3 Variables Questions - 4 Variables Questions - 5

Preprocessor Macros

Preprocessor Macros - 1 Preprocessor Macros - 2 Preprocessor Macros - 3 Preprocessor Macros - 4 Preprocessor Macros - 5

While Loop - C Questions

While Loop Questions - 1 While Loop Questions - 2 While Loop Questions - 3 While Loop Questions - 4 While Loop Questions - 5

for Loop - C Questions

for Loop Questions - 1 for Loop Questions - 2 for Loop Questions - 3 for Loop Questions - 4 for Loop Questions - 5

if else - C Questions

if else Questions - 1 if else Questions - 2 if else Questions - 3 if else Questions - 4 if else Questions - 5

Switch case - C Questions

Switch case Questions - 1 Switch case Questions - 2 Switch case Questions - 3 Switch case Questions - 4 Switch case Questions - 5

Array - C Questions

Array Questions - 1 Array Questions - 2 Array Questions - 3 Array Questions - 4 Array Questions - 5

Functions - C Questions

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Memory Allocation

Memory Allocation - 1 Memory Allocation - 2
The ones who are crazy enough to think they can change the world are the ones who do.
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C Files Tricky Interview Questions

In most of the MNC interview questions such as in ZOHO interview question, IVTL Infoview interview questions, Amazon interview questions, GOOGLE interview questions, Infosys interview questions and even in Voonik interview questions, We come across several Tricky C Questions about which 2:5 of the questions are from Files in c. Solving that kind of tricky C questions is not an easy task for all C programmers. We need more practices to solve it with ease. So we provide 25+ interesting C questions in Files to make your MNC interview very easy.

C Files Questions

21.What will be the output of the C program?

#include<stdio.h>
int main()
{
	fprintf(&_streams[1], "This will display");
	return 0;
}

A. Prints nothing

B. This will display

C. Compilation Error

D. Linker Error

x

 

Option: B

Explanation

C has a numerous number of predefined macors. In this program, we have used &_streams[1] which is a macro. &streams[1] = stdout which is defined in stdio.h header file. It also have the following macros:
#define stdin &_streams[0]
#define stdout &_streams[1]
#define stderr &_streams[2]
#define stdaux &_streams[3]
#define stdprn &_streams[4]

Answer


22.File Opening is

A. not necessary

B. not using any library function

C. a default action

D. an action of connecting a program to a file

x

 

Option: D

Explanation

If you don't mention the fopen() function, the will not know where to read and write. It is the action to connecting a file with program to write or read data or to perform any action.

Answer


23.File Pointer is a

A. a buffer pointer

B. a stream pointer

C. a pointer to FILE datatype

D. All the Above

x

 

Option: A

Explanation

FILE is a datatype in C which is defined in "stdio.h" header file. It defined like this:
File control structure for streams.
typedef struct {
short level;
unsigned flags;
char fd;
unsigned char hold;
short bsize;
unsigned char *buffer, *curp;
unsigned istemp;
short token; } FILE;
source: Turbo C version 3.0

Answer


24.If an error occurs, the function fseek() will returns

A. NULL

B. 0

C. -1

D. non-zero values

x

 

Option: D

Explanation

The fseek() function returns a non-zero value when an error ouccured. It will returns zero on successful completion.

Answer


25.C supports?

A. Low level Files

B. High level Files

C. Both a and b

D. Executable Files only

x

 

Option: C

Explanation

Answer


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