单项选择题

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

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多项选择题

When you try to start the Database Control by using the emctl start dbconsole command the following error is displayed：
TZ set to America/New_york
OC4J Configuration issue.
/u01/app/oracle/product/10.1.0/db_1/oc4j/j2ee/OC4J_DBConsole_orcl.us.oracle.com not found.
Which two environment variables do you need to set appropriately to avoid such errors and start the Database Control successfully？（）

A.NLS_LANG
B.ORACLE_SID
C.ORACLE_HOME
D.ORACLE_BASE
E.LD_LIBRARY_PATH

单项选择题

The SCOTT user has an index on the ITEM_DESC column of the ITEM table. As part of the year-ending task， SCOTT updates the ITEM_DESC column for most of the rows in the ITEM table. How does this change to the table affect the index？（）

A.An update in a leaf row takes place.
B.The index becomes invalid after the update.
C.The leaf block containing the row to be updated is marked as invalid.
D.A row in the leaf block of the index for the key value is deleted and inserted.

单项选择题

Your tnsnames.ora file has the following entry for the service alias ORCL： ORCL =
（DESCRIPTION =
（ADDRESS = （PROTOCOL = TCP）（HOST = 10.156.24.216）（PORT = 1521））
（CONNECT_DATA =
（SERVER = DEDICATED）
（SERVICE_NAME = orcl.oracle.com）
）
）
The TNSPING command executes successfully when tested with ORCL but you are not able to connect to the database instance with the following command：
SQL> CONNECT scott/tiger@orcl
What could be the reason for this？（）

A.The listener is not running at the server.
B.The TNS_ADMIN environmental variable is set to a wrong value.
C.The orcl.oracle.com database service is not registered with the listener.
D.The DEFAULT_DOMAIN parameter is set to a wrong value in the SQLNET.ORA file.