Which statement regarding the above command is correct?

You executed the following command:
RMAN> RECOVER COPY OF DATAFILE ‘ / u01 / app / oracle / oradata / orcl / users01 .dbf ‘ ;

Which statement regarding the above command is correct?

A.
The ‘/u01/app/oracle/ordata/orcl/users01.dbf’ data file is recovered from the image copy.

B.
The ‘/u01/app/oracle/ordata/orcl/users01.dbf’ data file is recovered from the last incremental backup.

C.
Image copies of the ‘/u01/app/oracle/ordata/orcl/users01.dbf’ data file are updated with all changes up to incremental backup SCN.

D.
Image copies of the ‘/u01/app/oracle/ordata/orcl/users01.dbf’ data file are recovered using the above command if data file recovery fails.

Explanation:
In Oracle10g, you can now recover datafile copies by applying changed blocks from a change tracking file to the datafile image copy. This is an important feature as it will significantly speed up datafile recovery times. It is done in 2 stages:
1. Use an RMAN command to update the datafile image copy with changed blocks:
RMAN>recover copy of datafiles;
2. Apply any archived redo logs to fine-tune the datafile to the exact point-in-time or SCN.

REF: Oracle(r) Database 10g : New Features for Oracle 8i DBAs, 18-19