University of Central Florida (UCF) EGN3211 Engineering Analysis and Computation Final Practice Exam

In many programming environments, when you write data to a file, the data may be buffered in memory and not immediately written to the file on the disk. If you want to read from that file after writing to it within the same program without using functions like flush, seek, or rewind, you usually cannot do so because the file pointer is left at the end of the file after the write operation.

Reading requires that the file pointer be repositioned to the beginning (or another appropriate location) to access the written data. Without seeking, the read operation will occur starting from the current end of file position, resulting in an inability to read the recently written data until the pointer has been adjusted appropriately.

This principle is consistent across many programming languages and file systems. Thus, if the answer indicates that it is false that you can read from a file after writing to it without employing repositioning techniques, it aligns with this understanding of file handling in programming.