多项选择题

What is true regarding the role Oracle Net provides in a client server connection with no middle tier？（）

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

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单项选择题

You discover that a disk failure occurred on DISK3 where the data file belonging to the USER_DATA table space is stored. The database is currently open and you need to recover the data file. You will restore the data file to DISK2.
What is the correct sequence RMAN commands to restore and recover the data file？（）

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

多项选择题

Which two statements regarding the control file and Recover Manager are true？（）

A.The control file can grow in size.
B.The control file can store RMAN scripts.
C.CONTROL_FILE_RECORD_KEEP_TIME determines retention time for RMAN records.
D.The RMAN catalog can exist solely in the control file of the target database.

单项选择题

You want to drop the TBS1 tablespace from your database.
You also want to delete the corresponding data files automatically， and not have to do it manually.
What should you do？（）

A.Use the DROP DATAFILE command.
B.Use the DROP TABLESPACE command.
C.Ensure that all database files are Oracle Managed Files before using the DROP TABLESPACE command.
D.Ensure that the DB_FILE_CREATE_DEST initialization parameter is set before using the DROP TABLESPACE command.