单项选择题

When you are allowing RMAN to backup your archived redo log files，how does RMAN know which archived redo logs to back up from your archive log destination？（）

A.RMAN keeps a list of archive logs in a text file.
B.The DBA must manually tell RMAN which archive logs to backup.
C.RMAN has access to target control file and/or catalog information.
D.RMAN looks at the ARCHIVE_LOG_DEST parameter of your target database and backs up all archive logs found.

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单项选择题

What is the purpose of importing from an export，and specifying that no rows be imported and that the output goes to a log file？（）

A.To verify space requirements in the target database before importing.
B.To generate the SQL for the DDL operations that would occur during import.
C.To check character set compatibility between the export file and the target database.
D.To check for integrity constraint violations that would occur in the target database.

多项选择题

The RMAN BACKUP command using the DELETE INPUT option can be used with which three types of files？（）

A.data files
B.backup sets
C.control files
D.archived redo log files

单项选择题

Which statement is true regarding the Archiver （ARCn） process，archived log files，and recovery？（）

A.A database backup, combined with archived redo log files, guarantees that all committed data can be recovered to the point of failure.
B.During recovery the ARCn background process copies its redo entries identified for recovery by the control file to the data files.
C.After each write to an archived log, the mandatory background process ARCn writes its log sequence number and the first and last SCN number within the log sequence to the control file.
D.At database recover time, and archived redo log is uniquely identified for recovery use by its redo thread number and destination ID number retrieved from the control file.