MCQ Exam Test

Q1

Choose the correct difference between getc() and fgetc().

Q2

setvbuf() and setbuf() function controls buffering for the stream.

Q3

What will be the output of the following C code? #include <stdio.h> #include <math.h> int main() { unsigned int i = -1; printf("%f\n", fabs(i)); return 0; }

Q4

The function fprintf is used in the program ...........

Q5

What are the two predefined FILE pointers in C?

Q6

What is the purpose of the 'fileno' function in C?

Q7

What is the return value of 'putc' if it fails to write a character to a file in C?

Q8

Which one of the following is valid for opening a read-only ASCII file?

Q9

What happens if you try to open a file in 'r' mode that doesn't exist in C?

Q10

How do you write an integer to a file in C?

Q11

. . . . . . . . is an optional argument that gives the maximum number of characters to be read.

Q12

Which function is used to write a character to a file in C?

Q13

In C, what is the purpose of the 'fflush' function?

Q14

The given statement FILE *fptr;

Q15

How do you read a string from a file in C?

Q16

Which function is used to create a new directory in C?

Q17

If the conversion characters of int d, i, o, u and x are preceded by h, it indicates?

Q18

What does the 'remove' function in C do?

Q19

What will be the output of the following C code if following commands are used to run (considering myfile exists)? gcc -otest test.c ./test < myfile #include <stdio.h> int main() { char c = 'd'; putchar(c); }

Q20

Which among the following mathematical function do not have a "double" return-type?

Q21

Which function is used to read and write data in binary mode in C?

Q22

What will be the output of the following C code? #include <stdio.h> struct p { struct p next; int x; }; int main() { struct p p1 = malloc(sizeof(struct p)); p1->x = 1; p1->next = malloc(sizeof(struct p)); printf("%d\n", p1->next->x); return 0; }

Q23

Which of the following function compares 2 strings with case-insensitively?

Q24

Each call of va_arg . . . . . . . .

Q25

What is FILE reserved word?

C Programming - Part 66

Choose the correct difference between getc() and fgetc().

setvbuf() and setbuf() function controls buffering for the stream.

What will be the output of the following C code? #include <stdio.h> #include <math.h> int main() { unsigned int i = -1; printf("%f\n", fabs(i)); return 0; }

The function fprintf is used in the program ...........

What are the two predefined FILE pointers in C?

What is the purpose of the 'fileno' function in C?

What is the return value of 'putc' if it fails to write a character to a file in C?

Which one of the following is valid for opening a read-only ASCII file?

What happens if you try to open a file in 'r' mode that doesn't exist in C?

How do you write an integer to a file in C?

. . . . . . . . is an optional argument that gives the maximum number of characters to be read.

Which function is used to write a character to a file in C?

In C, what is the purpose of the 'fflush' function?

The given statement FILE *fptr;

How do you read a string from a file in C?

Which function is used to create a new directory in C?

If the conversion characters of int d, i, o, u and x are preceded by h, it indicates?

What does the 'remove' function in C do?

What will be the output of the following C code if following commands are used to run (considering myfile exists)? gcc -otest test.c ./test < myfile #include <stdio.h> int main() { char c = 'd'; putchar(c); }

Which among the following mathematical function do not have a "double" return-type?

Which function is used to read and write data in binary mode in C?

What will be the output of the following C code? #include <stdio.h> struct p { struct p next; int x; }; int main() { struct p p1 = malloc(sizeof(struct p)); p1->x = 1; p1->next = malloc(sizeof(struct p)); printf("%d\n", p1->next->x); return 0; }

Which of the following function compares 2 strings with case-insensitively?

Each call of va_arg . . . . . . . .

What is FILE reserved word?

Choose the correct difference between getc() and fgetc().

setvbuf() and setbuf() function controls buffering for the stream.

What will be the output of the following C code? #include <stdio.h> #include <math.h> int main() { unsigned int i = -1; printf("%f\n", fabs(i)); return 0; }

The function fprintf is used in the program ...........

What are the two predefined FILE pointers in C?

What is the purpose of the 'fileno' function in C?

What is the return value of 'putc' if it fails to write a character to a file in C?

Which one of the following is valid for opening a read-only ASCII file?

What happens if you try to open a file in 'r' mode that doesn't exist in C?

How do you write an integer to a file in C?

. . . . . . . . is an optional argument that gives the maximum number of characters to be read.

Which function is used to write a character to a file in C?

In C, what is the purpose of the 'fflush' function?

The given statement FILE *fptr;

How do you read a string from a file in C?

Which function is used to create a new directory in C?

If the conversion characters of int d, i, o, u and x are preceded by h, it indicates?

What does the 'remove' function in C do?

What will be the output of the following C code if following commands are used to run (considering myfile exists)? gcc -otest test.c ./test < myfile #include <stdio.h> int main() { char c = 'd'; putchar(c); }

Which among the following mathematical function do not have a "double" return-type?

Which function is used to read and write data in binary mode in C?

What will be the output of the following C code? #include <stdio.h> struct p { struct p *next; int x; }; int main() { struct p* p1 = malloc(sizeof(struct p)); p1->x = 1; p1->next = malloc(sizeof(struct p)); printf("%d\n", p1->next->x); return 0; }

Which of the following function compares 2 strings with case-insensitively?

Each call of va_arg . . . . . . . .

What is FILE reserved word?

What will be the output of the following C code? #include <stdio.h> struct p { struct p next; int x; }; int main() { struct p p1 = malloc(sizeof(struct p)); p1->x = 1; p1->next = malloc(sizeof(struct p)); printf("%d\n", p1->next->x); return 0; }