Question

Which one of the statement indexed and hashed files is not true?

1. An index file consists of a data file and index file.
2. An index file can be accessed from disk if a data record needs to be accessed or changed.
3. A hashed file does not need a index file.
4. Data in hashed file is received via a mathematical function. ​

Answer 1

Answer:

i think All options are suitable for this question