A company offering music services provides a search feature to its users

A company offering music services provides a search feature to its users and allows them to mix music (a key feature for disc jockeys), which is supported through parallel processing. All music information is stored in a database management system.

a. Which file organization would best support transaction processing applications involving queries on one or a few rows?

b. Which features of hashed file organization support parallel processing applications? Which file organization should the company use to back up its data?