MCQ Exam Test

Q1

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

Q2

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

Q3

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

Q4

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

Q5

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

Q6

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

Q7

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; }

Q8

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

Q9

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

Q10

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

Q11

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

Q12

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

Q13

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

Q14

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); }

Q15

What does the 'remove' function in C do?

Q16

What is FILE reserved word?

Q17

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

Q18

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

Q19

The given statement FILE *fptr;

Q20

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

Q21

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

Q22

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

Q23

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

Q24

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; }

Q25

What are the two predefined FILE pointers in C?

C Programming - Part 66

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

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

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

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

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

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

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; }

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

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

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

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

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

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

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); }

What does the 'remove' function in C do?

What is FILE reserved word?

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

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

The given statement FILE *fptr;

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

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

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

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

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; }

What are the two predefined FILE pointers in C?

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

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

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

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

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

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

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; }

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

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

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

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

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

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

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); }

What does the 'remove' function in C do?

What is FILE reserved word?

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

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

The given statement FILE *fptr;

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

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

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

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

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; }

What are the two predefined FILE pointers 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; }