Identify the advantage of recovery an image copy of a datafile during RMAN backup. (Choose all that apply.)
Answer: A,C
Explanation: During media recovery, RMAN can start with the incrementally updated image copy and potentially apply fewer archived redo log files, significantly reducing recovery time. With an incrementally updated image copy, any subsequent image copy will be identical to the incrementally updated image copy. B is incorrect because a block change tracking file reduces the time it takes RMAN to identify changed blocks. D is incorrect because duplexed backups is still a valid backup method to increase the number of backup copies. E is incorrect because the incremental update will add a slight amount of overhead during the backup but can dramatically reduce the recovery time.