1Z0-025 무료 덤프문제 온라인 액세스

Which technique does Oracle use to perform full backups of data files?

• A.The server process reads and backs up the entire file.
• B.The server process reads the entire file and skips blocks that have never been used.
• C.The server process reads the entire file and skips blocks assigned its temporary segments.
• D.The server process reads the entire file and skips blocks that currently are not being used.
• E.The server process reads the entire file and skips blocks that are unchanged from the last backup.

When creating a standby database, which files must be transferred to the standby server?

• A.The database backup and the online redo-log files.
• B.The database backup and the archived redo-log files.
• C.The standby control file, the database backup, and the archived redo-log files.
• D.The standby control file, the database backup, and the online redo-log files.

Which statement about disabling archival destinations is true?

• A.You can only disable optional archival destinations.
• B.You can disable any archival destination as long as you have enough enabled archival destinations left to meet the LOG_ARCHIVE_MIN_SUCCESS threshold value.
• C.You can only disable mandatory archival destinations as long as at least one mandatory archival destination is left.
• D.You can disable archival destinations by specifying ARCHIVE_DEST_STATE_nn_DISABLE

Which three statements about recovery manager backups are true? (Choose three)

• A.Incremental backups are noncumulative by default.
• B.In a full backup, Recover manager will back up all files and all used blocks only.
• C.With multilevel incremental backups, you can have no more than three levels.
• D.A control file backup set cannot contain any other types of files.
• E.Each file in a backup set must have the same block size.

What are benefits of putting the database in ARCHIVELOG mode? (Choose two)

• A.The database can be backed up while online.
• B.Checksums are performing on all archived files.
• C.All pending transactions are committed.
• D.It guarantees recovery to the time of failure.
• E.Backups are done automatically.