Here is the solution for What is the purpose of the recover command?. The solution is given after the options.

What is the purpose of the recover command?
Recover database datafiles from physical disk backup sets.
Recover required incremental backups from physical disk backup sets.
Recover required archived redo logs from physical disk backup sets.
Apply incremental backups to recover the database.
Apply archived redo logs to recover the database.
Correct AnswerRecover required incremental backups from physical disk backup sets. Recover required archived redo logs from physical disk backup sets. Apply incremental backups to recover the database. Apply archived redo logs to recover the database.