File Input Output- C Programming MCQ Questions and Answers

Section 1 Section 2 Section 3

1.
In C, which library is used for file operations such as reading and writing files?

A. stdio.h

B. iostream.h

C. fileio.h

D. files.h

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2.
Which function is used to open a file in C for writing?

A. fopen()

B. open()

C. writefile()

D. createfile()

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3.
What does 'FILE' represent in C when working with files?

A. A built-in data type for files

B. A file descriptor

C. A file pointer

D. A file structure

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4.
How do you check if a file was opened successfully in C?

A. Use the 'filestatus' variable

B. Check the return value of fopen()

C. Use the 'fileopen' function

D. Check the file's size

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5.
Which function is used to write data to a file in C?

A. fwrite()

B. writefile()

C. filewrite()

D. putfile()

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6.
What is the difference between 'r' and 'w' modes when opening a file in C?

A. 'r' is for read-only and 'w' is for write-only

B. 'r' is for reading and 'w' is for reading and writing

C. 'r' is for read-only and 'w' is for write-only, creating a new file

D. 'r' is for reading and 'w' is for writing, overwriting an existing file

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7.
How do you read a character from a file in C?

A. getc()

B. readchar()

C. read()

D. getchar()

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8.
What is the purpose of the 'fprintf' function in C?

A. To format and write data to a file

B. To read data from a file

C. To open a file

D. To close a file

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9.
Which function is used to close a file in C?

A. closefile()

B. fclose()

C. endfile()

D. fileclose()

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10.
In C, what is the function of the 'feof' function?

A. To check if the file has reached the end

B. To find the size of a file

C. To check if the file is open

D. To check if the file exists

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File Input Output- C Programming MCQ Questions and Answers

1. In C, which library is used for file operations such as reading and writing files?

Answer & Solution

2. Which function is used to open a file in C for writing?

Answer & Solution

3. What does 'FILE' represent in C when working with files?

Answer & Solution

4. How do you check if a file was opened successfully in C?

Answer & Solution

5. Which function is used to write data to a file in C?

Answer & Solution

6. What is the difference between 'r' and 'w' modes when opening a file in C?

Answer & Solution

7. How do you read a character from a file in C?

Answer & Solution

8. What is the purpose of the 'fprintf' function in C?

Answer & Solution

9. Which function is used to close a file in C?

Answer & Solution

10. In C, what is the function of the 'feof' function?

Answer & Solution

Read More Section(File Input Output)

1.
In C, which library is used for file operations such as reading and writing files?

2.
Which function is used to open a file in C for writing?

3.
What does 'FILE' represent in C when working with files?

4.
How do you check if a file was opened successfully in C?

5.
Which function is used to write data to a file in C?

6.
What is the difference between 'r' and 'w' modes when opening a file in C?

7.
How do you read a character from a file in C?

8.
What is the purpose of the 'fprintf' function in C?

9.
Which function is used to close a file in C?

10.
In C, what is the function of the 'feof' function?