Storage Structure:-The memory that is allocated to a variable or a constant is stored in the main memory of the computer that is RAM which gets deleted as soon as the function ends. This representation of allocating the memory is called Storage Structure

File Structure:-If you write the data in a file and save that file in the hard disk or any other external device like Pen Drive then the data will remain intact till it is deleted manually by the user. This representation of saving the file in an auxiliary or secondary memory is called File Structure

BY Best Interview Question ON 29 Jun 2020