C Files Handling Interview Questions

91. What is Files in C and its Uses?

A file is a collection of related records stored in a secondary storage of the computer. Uses: These informations are stored permanently. Refer For More C Files

91. How to Read a File?

By using the some library functions we can read a file.

• fscanf()
• fgetc()
• fgets()

Refer For More C File Read

93. How to write a File?

By using the some library functions we can read a file.

• fprintf()
• fputc()
• fputs()

Refer For More C File Write

94. What is Error Handling in C?

The ferror() function is used detect error while reading or writing a file. Refer For More C Error Handling

95. Explain Low Level Disk IO?

The Low level file IO is nothing but, the data is read or write to the file directly without the need of buffer. The Low level file IO functions use handles, so the data transfer speed is faster than high level IO functions. The following low level IO functions are defined in io.h header file. Refer For More C Low Level Disk IO