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Oracle database 10g:Administration I Sample Questions:
1. View the Exhibit to see the source and target databases.
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 the development 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 schemas option and add the network_link = devdb.us.oracle.com option in the command
B) add network_link = devdb.us.oracle.com option in the command
C) remove the dumpfile option and add the network_link = devdb.us.oracle.com option in the command
D) remove the dumpfile option in the command
E) remove the flashback_time option in the command
F) add the user, SYSTEM, to the schemas option in the command
2. View the Exhibit and examine the output. Which statement describes the conclusion?
A) The users should use bind variables instead of literals in the query.
B) The shared pool size should be increased to accommodate the SQL statements.
C) Preparing indexes on the tables used in the SQL statements would improve the library cache performance.
D) The dictionary cache is consuming more space than the library cache.
3. You have been recently hired as a database administrator. Your senior manager asks you to study the production database server and submit a report on the settings done by the previous DBA. While observing the server settings, you find that the following parameter has been set in the parameter file of the database:
REMOTE_OS_AUTHENT = TRUE
What could have been the reason to set this parameter as TRUE?
A) to disable the administration of the operating system from a remote client
B) to restrict the scope of administration to identical operating systems
C) to enable operating system authentication for a remote client
D) to enable the administration of the operating system from a remote client
E) to allow the start up and shut down of the database from a remote client
4. As a result of performance analysis, you created an index on the prod_name column of the prod_det table, which contains about ten thousand rows. Later, you updated a product name in the table. How does this change affect the index?
A) The index becomes invalid when you make any updates.
B) A leaf row in the index will be deleted and inserted.
C) The index will be updated automatically at commit.
D) An update in a leaf row takes place.
E) A leaf will be marked as invalid.
5. Because of a power outage, instance failure has occurred. From what point in the redo log does recovery begin and where does it end?
A) beginning of redo log to end of redo log
B) checkpoint position to end of redo log
C) current redo log and inactive redo log
D) all redo logs before the point of last commit
E) beginning of redo log to checkpoint position
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: A | Question # 3 Answer: C | Question # 4 Answer: B | Question # 5 Answer: B |
