The backup retention policy is configured as RECOVERY WINDOW 2. You executed the following command in Recovery Manager （RMAN） against your database：  RMAN> REPORT OBSOLETE;  What would you see in the output？（）

A .  After two days， the backup will be marked obsolete. B .  After two days， the backup will be deleted from the media. C .  If the RMAN repository has records of two or more recent backups of a file， then the older backup will be deleted from the media. D .  If the RMAN repository has records of two or more recent backups of a file， then the older backup will be marked obsolete.

A . The command fails because you cannot configure a redundancy-based retention policy when backup optimization is enabled B . Backup optimization is performed, but RMAN considers the redundancy-based retention policy when it determines which datafiles should be backed up C . Backup optimization is permanently disabled D . Backup optimization is temporarily disabled because a redundancy-based retention policy is specified

A .  They will be renamed. B .  Nothing will happen to them. The backup set pieces do not exist. C .  They will be deleted immediately since they are not in the flash recovery area. D .  You will need to manually remove the physical files listed in the output of the commands. E .  They will become hidden files and removed 10 days later.

A .  An upper limit on how far you can flash back the database，depending on the information in the redo logs B .  An upper limit on how far you can flash back the database，depending on the information in the undo tablespace C .  The amount of time for which the flashback data is to be kept in the flash recovery area， provided that there is enough space D .  The amount of time for which the flashback data is guaranteed to be kept in the undo tablespace，provided that there is enough space

A .  The incident metadata is purged when the problem is resolved and the DBA closes the SR B .  The incident files and dumps are not retained in the ADR for the manually created incidents  C .  The incident files are retained but the incident metadata is purged when the problem is resolved and the DBA closes the SR D .  The default setting is for one year after which the incident metadata is purged from the ADR and the files are retained for one month

A . The incident metadata is purged when the problem is resolved and the DBA closes the SR B . The incident files and dumps are not retained in the ADR for the manually created incidents C . The incident files are retained but the incident metadata is purged when the problem is resolved and the DBA closes the SR D . The default setting is for one year after which the incident metadata is purged from the ADR and the files are retained for one month

A . cause B . reason C . result

A . Backups will never expire. B . It removes any retention policy. C . The DELETE OBSOLETE command will fail with an error. D . It sets the retention policy to the default of REDUNDANCY 1.

A .  The command fails because you cannot configure a redundancy-based retention policy when backup  optimization is enabled B .  Backup optimization is performed， but RMAN considers the redundancy-based retention policy when it determines which datafiles should be backed up C .  Backup optimization is permanently disabled D .  Backup optimization is temporarily disabled because a redundancy-based retention policy is specified

A . Undo data becomes obsolete after 1，000 seconds. B . Undo data gets refreshed after every 1，000 seconds. C . Undo data will be stored permanently after 1，000 seconds. D . Committed undo data would be retained for 1，000 seconds if free undo space is available. E . Undo data will be retained in the UNDO tablespace for 1，000 seconds，then it gets moved to the TEMPORARY tablespace to provide read consistency.

A . An upper limit on how far you can flash back the database, depending on the information in the redo logs B . An upper limit on how far you can flash back the database, depending on the information in the undo tablespace C . The amount of time for which the flashback data is to be kept in the flash recovery area, provided that there is enough space D . The amount of time for which the flashback data is guaranteed to be kept in the undo tablespace, provided that there is enough space

A .  After two days，a backup will be marked obsolete B .  After two days，a backup will be deleted from the media C .  If the RMAN repository has records of two or more recent backups of a file，then older backups will be deleted from the media. D .  If the RMAN repository has records of two or more recent backups of a file then older backups will be marked obsolete.

A . The retention policy is cleared. B . RMAN does not consider any backup as obsolete. C . The retention policy is set to its default setting of redundancy 1. D . The retention policy is set to its default setting of recovery window 7.

A . After two days, a backup will be marked obsolete B . After two days, a backup will be deleted from the media C . If the RMAN repository has records of two or more recent backups of a file, then older backups will be deleted from the media. D . If the RMAN repository has records of two or more recent backups of a file, then older backups will be marked obsolete.

A．him B．himself C．them D．themselves

A．lookedinto． B．lookingfor． C．lookinginto． D．lookedfor．

A．The UN will vote on the retention of sanctions against Iraq. B．Most of us？tend？to？eat？far too much, which can lead to？fluid？retention. C．The？retention of？valued？employees？is？worth？more than a little？inconvenienc E． D．There was a slight retention in the departure of the plan E． 此题为多项选择题。

是 否

A．next to B．far away C．at D．off

A．Increased capillary hydrostatic pressure B．Plasma colloid osmotic pressure drops C．Blockage of lymphatic drainage D．Increased capillary wall permeability E．glomerulotubular imbalance