File Input Output- C Programming MCQ Questions and Answers

11

Which function is used to move the file pointer to a specific position in a file?

A) fseek() B) movefile() C) setposition() D) fileseek()

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Answer & Solution

Answer: Option A

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12

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

A) To close the file B) To reset the file pointer to the beginning C) To delete the file D) To check if the file is empty

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Answer & Solution

Answer: Option B

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13

Which function is used to read a line of text from a file in C?

A) readtext() B) getline() C) fgets() D) readline()

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Answer & Solution

Answer: Option C

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14

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

A) 'r+' is for reading and writing, 'w+' is for reading only B) 'r+' is for reading and writing, 'w+' is for writing only, creating a new file C) 'r+' is for reading and writing, 'w+' is for writing only, overwriting an existing file D) 'r+' is for reading only, 'w+' is for reading and writing, creating a new file

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Answer & Solution

Answer: Option B

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15

Which function is used to delete a file in C?

A) deletefile() B) remove() C) erasefile() D) delete()

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Answer & Solution

Answer: Option B

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16

What does the 'fread' function in C do?

A) Reads binary data from a file B) Reads formatted data from a file C) Reads a specific line from a file D) Reads a character from a file

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Answer & Solution

Answer: Option A

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17

Which function is used to rename a file in C?

A) rename() B) changename() C) movefile() D) setfilename()

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Answer & Solution

Answer: Option A

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18

In C, what does the 'feof' function return if the end of the file is reached?

A) 0 B) 1 C) -1 D) EOF

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Answer & Solution

Answer: Option D

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19

How do you check if a file exists in C?

A) Use the 'fileexist' function B) Check the return value of fopen() C) Use the 'filestatus' variable D) Use the 'fileopen' function

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Answer & Solution

Answer: Option B

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20

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

A) To find the current position of the file pointer B) To find the total number of bytes in a file C) To check if a file is open D) To find the file's size

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Answer & Solution

Answer: Option A

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