What view might you&...

单项选择题What view might you use to try to determine how long a particular backup will take?（）

A.V$SESSION_EVENT
B.V$SESSION
C.V$W0041ITS
D.V$WAITSTAT
E.V$SESSION_LONGOPS

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你可能感兴趣的试题

1.单项选择题What does it mean if a backup is expired?（）

A.The backup set has exceeded the retention criteria set in RMAN and is eligible for removal.
B.The backup set has one or more invalid blocks in it and is not usable for recovery.
C.The backup set contains one or more tablespaces no longer in the database.
D.The backup set contains one or more missing backup set pieces.
E.The backup set is from a previous version of RMAN and was not upgraded.

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2.单项选择题You want to make sure that your database backup does not exceed 10 hours in length. What command would you issue that would meet this condition?（）

A.backup database plus archivelog
B.backup database plus archivlog until time ‘10:00‘
C.backup database plus archivelog timeout ‘10:00‘
D.backup database plus archivelog duration 10:00

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3.单项选择题ou have backed up your database twice without connecting to the recovery catalog. What command do you issue to transfer the control-file metadata to the recovery catalog? （）

A.synch catalog
B.resync catalog
C.replicate catalog
D.update catalog
E.restore catalog

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4.单项选择题Which command would you use to determine what database backups are currently available for restore?（）

A.list database backup
B.report database backup
C.list backup of database
D.list summary backup
E.report backup of database

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5.单项选择题You are using RMAN to backup your ARCHIVELOG mode database. You have enabled control-file autobackups. Which files are not backed up during the RMAN backup?（）

A.Database Datafiles
B.Database Control Files
C.Online redo logs
D.Archived redo logs
E.The database SPFILE
F.None of the above, all these files are backed up.

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6.单项选择题Which command will restore all datafiles to the date 9/30/2008 at 18:00 hours? （）

A.restore datafiles until time '09/28/2008:21:03:11'
B.restore database files until time '09/28/2008:18:00:00'
C.restore database until time '09/28/2008:18:00:00'
D.recover database until time '09/28/2008:18:00:00'
E.recover database until timestamp '09/28/2008:18:00:00'

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7.单项选择题What command would you issue to enable automated backups of control files? （）

A.alter database controlfile autobacku on
B.alter system controlfile autobackup on
C.configure controlfile autobackup on
D.enable controlfile autobackup

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8.单项选择题Which command do you use to create a recovery-catalog schema? （）

A.create recovery catalog
B.create catalog
C.build catalog
D.catalog create
E.mount catalog

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9.单项选择题What command would you use to set a persistent setting in RMAN so that backups are all written to a tape device?（）

A.CONFIGURE DEFAULT DEVICE TYPE TO TAPE MEDIA
B.CONFIGURE DEFAULT DEVICE TYPE TO TAPE
C.CONFIGURE DEFAULT DEVICE TYPE TO SBT
D.CONFIGURE DEFAULT DEVICE TYPE TO SBT_TAPE

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10.单项选择题What feature comes into play to help ensure the completion of the backup should one of three backup devices fail during a backup that is using three different channels?（）

A.Channel failover
B.Restartable backups
C.Rescheduable backups
D.Automatic backup recovery
E.Channel recovery

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