[单选]
You have created a database link， devdb.us.oracle.com， between the databases PRODDB and DEVDB. You want to import schema objects of the HR user using Oracle Data Pump from thedevelopment database， DEVDB， to the production database， PRODDB. You execute the following command on the target database server：
$impdp system/manager directory = DB_DATA dumpfile = schemas.dat schemas = hr
flashback_time = 2004-02-03 09：00
The command fails， displaying the following error： ORA-39001： invalid argument value
ORA-39000： bad dump file specification
ORA-31640： unable to open dump file “/home/oracle/schema/schemas.dat” for read ORA-27037： unable to obtain file status What would you do to overcome the error（）

A . remove the dumpfile option in the command
B . remove the flashback_time option in the command
C . remove the dumpfile option and add the network_link = devdb.us.oracle.com option in the command（Replace thedumpfile option with the network_link = devdb.us.oracle.com）
D . add the user， SYSTEM， to the schemas option in the command
E . remove the schemas option and add the network_link = devdb.us.oracle.com option in the command
F . add network_link = devdb.us.oracle.com option in the command

Identify three correct statements of a multi-org setup. （）(Choose three.) A Government Reporting Entity (GRE)/Legal Entity can point to one and only one Set of Books.。 Inventory Orgs can be associated directly with a GRE/Legal Entity.。 The creation of a Master Inventory organization is mandatory.。 One and only one Operating Unit can be associated with a GRE/Legal Entity.。 One Set of Books can have one or many GRE's/Legal Entities associated with it.。原核生物 You are developing a tax report for the payroll application. You created a before parameter form report trigger to create three temporary tables to store text that are need while the report is executed. Which report trigger would you use to delete these temporary tables?（） Before parameter form. 。 After parameter form. 。 Before report. 。 After report.。对学校来说，做好教师队伍建设重点做好两件事。 You are using Recovery Manager （RMAN） for backup and recovery operations. Your backup and recovery policy is such that you are performing full database backup every Tuesday and Friday. You configure RMAN using the following command： RMAN>CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 4 DAYS； All backup and archived redo logs generated during the current week are as follows： Which of the following files will be listed when issuing the REPORT OBSOLETE command on Sunday？（） the archived redo log with the log sequence 520。 the backup files from the full database backup performed on Tuesday。 the archived redo log with the log sequence 520 and the backup files from the full database backup performed on Tuesday。 archived redo logs with the log sequences 520， 521， 522 and the backup files from the full database backup performed on Tuesday。

You have created a database link， devdb.us.oracle.com， between the databases PRODDB and DEVDB. You want to import schema objects of the HR user using Oracle Data Pump from thedevelopment database， DEVDB， to the production database， PRODDB. You execute the following command on the target database server：
$impdp system/manager directory = DB_DATA dumpfile = schemas.dat schemas = hr
flashback_time = 2004-02-03 09：00
The command fails， displaying the following error： ORA-39001： invalid argument value
ORA-39000： bad dump file specification
ORA-31640： unable to open dump file “/home/oracle/schema/schemas.dat” for read ORA-27037： unable to obtain file status What would you do to overcome the error（）

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