The backup utility reports an error while performing the backup process. The server indicates noother problems. Which of the following is the MOST likely cause of the failed backup？（）
When youre performing active database duplication，a backup of what kind is required？（） A、 A current RMAN backup-set backup is required.B、 No backup is required.C、 An RMAN image backup is required.D、 A manual backup is required.E、 A "duplicate" preparatory backup is required.
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You are maintaining the SALES database of a company. You have never backed up the USERS tablespace that is currently offline. On Sunday， you issued the following commands： CONFIGURE DEFAULT DEVICE TYPE TO sbt； CONFIGURE BACKUP OPTIMIZATION ON； CONFIGURE RETENTION POLICY TO REDUNDANCY 3； From Monday to Saturday， you performed the following actions： Day Action Monday BACKUP DATABASE Tuesday BACKUP DATABASE Wednesday BACKUP DATABASE Thursday BACKUP DATABASE Friday BACKUP DATABASE Saturday BACKUP DATABASE How many times will the backup of the USERS tablespace be performed？（）A、 The backup will not be performed at all.B、 three timesC、 four timesD、 six times
What is an obsolete backup set？（） A、 A backup set that is missing one or more backup set piecesB、 A backup that has exceeded the retention criteria and is no longer neededC、 A backup set that does not include archived redo logsD、 A backup set that can not be recovered due to corruptionE、 A backup set superceded by a datafile copy
Which phrase best describes RMAN multiplexed backup sets？（）A、Stripes a single backup set across multiple channels.B、Identical copies of backup pieces within a backup set.C、Multiple backup sets with multiple channels configured.D、Simultaneous reads from multiple files and writes into the same backup piece.
What type of backup is stored in a proprietary RMAN format？（）A、 Backup setB、 Image copyC、 Backup sectionD、 Backup group
You want to perform an RMAN backup of database as a copy. Which two factors will you consider while performing the backup operation?（）A、The backup as copy can only be taken to diskB、The backup as copy can only be taken to tapeC、Backup can be performed only when the instance is shutdownD、Backup will constitute all used and unused blocks in the database
You want to perform a backup of your database to tape. Which backup format can you use？（）A、backup set onlyB、image copy onlyC、only user-managed backupD、both image copy and backup setE、only incremental image copy backup
