单项选择题

You work as a database administrator for Certkiller .com. You are using Recovery Manager （RMAN） for backup and recovery of your database. You executed the delete command in RMAN to delete a backup of atablespace. Which statement is true in this scenario？（）

A.A
B.B
C.C
D.D
E.E

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YouworkasadatabaseadministratorforCertkiller.com.Accord...

单项选择题You work as a database administrator for Certkiller .com. According to your backup strategy， you performed an incremental level 0 backup of your database. Which statement regarding this backup is true？（）

A.The backup is similar to image copy.
B.The backup contains all used data blocks.
C.The backup contains only unused data blocks.
D.The backup contains all data blocks changed since the last incremental level 1 backup.

You work as a database administrator for Certkiller .co...

单项选择题

You work as a database administrator for Certkiller .com. You need to rename a data file of atablespace.
How would you perform this？（）

A.A
B.B
C.C
D.D

YouworkasadatabaseadministratorforCertkiller.com.Oneoft...

多项选择题You work as a database administrator for Certkiller .com. One of the database users accidentally deleted all the rows of a critical table and committed the delete at 1：30 p.m. You senior database administrator， Certkiller， asks you to retrieve the lost data. Which two actions would you use to ensure that there is no impact on other connected users while retrieving the deleted rows？（）

A.Use a flashback query to retrieve the rows that were deleted
B.Useconventialincremental export and then import the affected object
C.Shutdown the database inNORMALmode and restart the database instance
D.Use DBMS_META package to reconstruct the object using undo segments
E.UseTablespacePoint in Time Recovery （TSPITR） method to recover the table and the data
F.Use Oracle DataPumptwithflashback_timeoption toentableflashback export and then import the affected object.

1Z0-042

You work as a database administrator for Certkiller .com. You are using Recovery Manager （RMAN） for backup and recovery of your database. You executed the delete command in RMAN to delete a backup of atablespace. Which statement is true in this scenario？（）