A. backup as copyB. backup copyC. copy as backupD. copy……

多项选择题WhichtwoclientrequestsarecapturedduringdatabasereplayCapture？（）

A. Flashback queries
B. Shared server requests
C. Login and logoff activities of sessions
D. Direct path load of data from external files by using utilities such as SQL *loader
E. Data definition language （DDL） and data manipulation language （DML） operations

多项选择题In Recovery Manager （RMAN）， you are taking image copies of the datafiles of your production database and rolling them forward as regular intervals. You attempt to restart your database instance after a regular maintenance task， you realize that one of the data files that belongs to the USERS tablespace is damaged and you need to recover the datafile by using the image copy. You could perform the following steps to accomplish this：   1） Mount the database  2） Take the data file offline  3） Bring the data file online  4） Use the RMAN SWITCH TO command to switch the image copy  5） Apply the archived redo logs  6） Open the database  7） Use the RMAN RESTORE TO command to switch to the image copy   Which two options illustrate the correct sequence of steps that you could follow？（）

A. 2， 6， 4， 5， 3
B. 1， 2， 4， 5， 3， 6
C. 1， 2， 4， 6， 3
D. 1， 2， 7， 5， 3， 6

单项选择题Examine the following RMAN command：   RMAN> CONFIGURE ENCRYPTION FOR DATABASE ON； RMAN> BACKUP DATABASE PLUS ARCHIVELOG；   Which prerequisite must be met before accomplishing the backup？（）

A. Provide a password for the encryption
B. Set up an Oracle wallet for the encryption
C. No setup is required as it is a default encryption method
D. Both Oracle wallet and password must be set up for the encryption

单项选择题AfteryouhaverestoredandrecoveredadatabasetoanewhostbyusingapreviouslyperformedRecoveryManager（RMAN）backup，whichisthebestoptionyouwouldconsiderforthenewdatabase？（）

A. Opening the database in RESTRICTED mode
B. Opening the database with the RESETLOGS option
C. Setting a new DBID for the newly restored database
D. Restoring the server parameter file （SPFILE） to the new host

多项选择题UserSCOTTwantstobackoutthetransactionsontheREGIONStableinhisschema.AsaDBA，whichcommandsmustyouexecutetoenableSCOTTtoflashbackthetransactions？（）

A. ALTER DATABASE FLASHBACK ON
B. GRANT SELECT any transaction TO scott
C. GRANT EXECUTE ON dbms_flashback TO scott
D. ALTER DATABASE ADD SUPPLEMENTAL LOG DATA
E. ALTER TABLESPACE undots1 RETENTION GUARANTEE
F. ALTER DATABASE ADD SUPPLEMENTAL LOG DATA （PRIMARY KEY） COLUMNS