What action must you take to ensure complete database recovery till the point of failure?

Multiplexing control files provides redundancy for the control file itself, protecting against loss of a single control file, but it does not facilitate point-in-time recovery for data files.

Duplexing RMAN backup sets creates multiple copies of backups for redundancy, ensuring backup availability, but it does not enable recovery beyond the backup time to the point of failure without archived redo logs.

Multiplexing online redo log files protects against loss of an active redo log file, but it does not enable recovery to the point of failure if the database is in NOARCHIVELOG mode, as old log information is eventually overwritten.

Configuring the database to run in ARCHIVELOG mode enables the archiving of online redo log files after they are filled. These archived redo logs, in conjunction with a database backup, provide the necessary information to recover the database to any specific point in time, including the moment of failure, by applying all transactional changes recorded in the logs.