单选题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 

第1题：

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

第2题：

You want to migrate your application from the development environment to the production environment. While doing the task， you want the database objects owned by the user DEVUSER in the development environment to be moved to the user APPS in the production environment. Which option of Oracle Data Pump Import would you use to achieve this objective？（）

• A、owner
• B、touser
• C、include
• D、schemas
• E、fromuser
• F、transform
• G、remap_schema
• H、remap_datafile
• I、reuse_datafiles
• J、remap_tablespace

第3题：

The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the database, you created a table called HR in your schema. What happens when you execute this query? SELECT * FROM HR;（）

• A、You obtain the results retrieved from the public synonym HR created by the database administrator.
• B、You obtain the results retrieved from the HR table that belongs to your schema.
• C、You get an error message because you cannot retrieve from a table that has the same name as a public synonym.
• D、You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a Cartesian product.
• E、You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a FULL JOIN.

第4题：

You are using flat files as the data source for one of your data warehousing applications. To optimizethe application performance， you plan to move the data from the flat files toclustered tablesin an Oracle database.  While migrating the data， you want to have minimal impact on the database performance and optimize thedata load operation. Which method would you use to load data into the Oracle database（）

• A、Use the external table population.
• B、Use the Oracle Data Pump export and import utility.
• C、Use the conventional path data load of the SQL*Loader utility.
• D、Use the INSERT INTO...SELECT command to load the data.

第5题：

You are working on a CATDB database that contains an Oracle Database version 11.1 catalog schema owned by the user RCO11. The INST1 database contains an Oracle Database version 10.1 catalog schema owned by the user RCAT10.  You want the RMAN to import metadata for database IDs 1423241 and 1423242， registered in RCAT10， into the recovery catalog owned by RCO11. You executed the following commands： RMAN> CONNECT CATALOG rco11/password@catdb  RMAN> IMPORT CATALOG rcat10/oracle@inst1 NO UNREGISTER；   Which two statements are true regarding the tasks accomplished with these commands？（）

• A、 They import all metadata from the RCAT10 catalog.
• B、 They unregister the database from the RCAT10 catalog.
• C、 They do not register the databases registered in the RCAT10 catalog.
• D、 They register all databases registered in the RCAT10 catalog.

第6题：

You are working on a CATDB database that contains an Oracle Database version 11.1 catalog schema owned by the user RCO11. The INST1 database contains an Oracle Database version 10.1 catalog schema owned by the user RCAT10. You want the RMAN to import metadata for database IDs 1423241 and 1423242, registered in RCAT10, into the recovery catalog owned by RCO11. You executed the following RMAN commands: RMAN> CONNECT CATALOG rco11/password@catdb RMAN> IMPORT CATALOG rcat10/oracle@inst1; What happens when you execute the above commands?（）

• A、They deregister all databases registered in the RCAT10 catalog.
• B、They import metadata for all registered databases in the RCAT10 database.
• C、They register all the RCAT10-catalog registered databases in the RCO11 catalog.
• D、They overwrite all stored scripts in the RCO11 catalog with the same name as that in the RCAT10 catalog.

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第13题：

You work as a database administrator for Certkiller .com. In your production  database， the size of Database Buffer Cache needs to be increased immediately for the current as well as future instances of the database. The Oracle instance has been configured to accommodate any changes in the size of the memory structures. At this is production database， you want to accomplish this task with no impact on the user’s connections.  Which activity must you have completed before accomplishing this task？（）

• A、You must have started the database instance in restricted mode.
• B、You must have started the database instance inNORMALmode.
• C、You must have started the database instance with server parameter file.
• D、You must have started the database instance but must not have mounted.
• E、You must have started the database instance but must not have opened.

第14题：

In your production database you want to use an Automatic Storage Management （ASM） instance to manage the database files. Which option would you use to migrate the database files from a non-ASM instance to an ASM instance？（）

• A、Oracle Migration Assistant
• B、Recovery Manager （RMAN）
• C、Oracle Data Pump Export and Import
• D、conventional Oracle Export and Import
• E、operating system utilities to copy the files to the ASM instance

第15题：

You want to move all the objects of the APPS user in the test database to the DB_USER schema of the production database. Which option of IMPDP would you use to accomplish this task？（）

• A、FULL
• B、SCHEMAS
• C、REMAP_SCHEMA
• D、REMAP_DATAFILES
• E、REMAP_TABLESPACE

第16题：

You are using flat files as the data source for one of your data warehousing applications. You plan to move the data from the flat file structures to an Oracle database to optimize the application performance. In your database you have clustered tables. While migrating the data， you want to have minimal impact on the database performance and optimize the data load operation. Which method would you use to load data into Oracle database？（）

• A、use the external table population
• B、use the Oracle Data Pump export and import utility
• C、use the conventional path data load of SQL*Loader utility
• D、use the direct path data load of Oracle export and import utility

第17题：

The application tables owned by the user TEST in a test database need to be exported to the APPS schema in the production database by using Data Pump.  Which option of Data Pump Import would you use to accomplish this？（）  

• A、 owner
• B、 touser
• C、 attach
• D、 remap_schema

第18题：

Flashback Database is enabled in your Oracle 10g database. One of your database users erroneously purged an important table residing in his schema. The table was purged sometime between 10：00 P.M. and 10：30 P.M. The next day， you decide to flash back the database. Before you flash back the database， you want to ensure that you have all the necessary flashback data. Which dynamic performance view must you use to determine whether you have the required flashback data to recover the purged table？（）

• A、 V$DATABASE
• B、 V$UNDOSTAT
• C、 V$FLASHBACK_DATABASE_LOG
• D、 V$FLASHBACK_DATABASE_STAT

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