Operatring systems Q. In file allocation methods, there are three approaches. Contiguous, Linked, and Indexed.   a) Which one does not waste any sectors?   b)Which one require additional sectors?   c)Which one uses extents?

Explain the concept of file locks and how they relate to exception handling in multi-threaded file access. What strategies can be employed to manage concurrent access to files?

The existence of persistent data in a master file is why

What is the optimum file access pattern for a chained disk allocation of files??

Distinguish between the two basic types of record-access methods: sequential and random.

What are the advantages and downsides of caching disc write operations?

Is it possible to see how an index file is utilized to speed up direct-access files?