Question

For large files, when the index itself becomes too large to be kept in memory?

(a) index is called

(b) an index is created for the index file

(c) secondary index files are created

(d) all of the mentioned

I had been asked this question during an internship interview.

This interesting question is from File System Interface Access Methods topic in section File Systems and their Implementation of Operating System

Answer 1

Correct answer is (b) an index is created for the index file

To explain I would say: None.