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Oracle database 10g:Administration I Sample Questions:

1. View the Exhibit to see the structure of the EMPLOYEES and DEPARTMENTS tables.
Your organization plans to dissolve the department with department ID 30. You execute the following command to delete rows from the DEPARTMENTS table: SQL>delete from DEPARTMENTS
where DEPT_ID = 30; The command fails and displays the following error: ERROR at line 1:
ORA-02292: integrity constraint (HR.SYS_C005374) violated - child record found Which two actions would you take to overcome this error? (Choose two.)

A) first, delete rows from the EMPLOYEES table for department id 30 and then delete the rows from the DEPARTMENTS table for department id 30
B) alter the foreign key constraint to include the cascade option
C) first, drop the DEPARTMENTS table and then delete the rows from the EMPLOYEES table
D) first, drop the EMPLOYEES table and then delete the rows from the DEPARTMENTS table
E) first, delete all of the rows from EMPLOYEES table and then delete the rows from the DEPARTMENTS table for department id 30
F) alter the foreign key constraint to include the on delete cascade option

2. A constraint in a table is defined with the INITIALLY IMMEDIATE clause. You executed the ALTER TABLE command with the ENABLE VALIDATE option to enable the constraint that was disabled. What are the two effects of this command? (Choose two.)

A) It prevents insert, update, and delete operations on the table while the constraint is in the process of being enabled.
B) It does not validate the existing data in the table.
C) It fails if any existing row violates the constraint.
D) It enables the constraint to be enforced at the end of each transaction.

3. In which situation would you use the Oracle Shared Server configuration?

A) when performing backup and recovery operations using Oracle Recovery Manager
B) in an online transaction processing (OLTP) system where large number of client sessions are idle most of the time
C) when performing export and import using Oracle Data Pump
D) when performing batch processing and bulk loading operation in a data warehouse environment

4. Your database is having two control files, three redo log file groups with two members in each group. Failure of which file would cause an instance to shut down?

A) loss of the initialization parameter file
B) any archive log file
C) any data file belonging to the default permanent tablespace
D) one of the redo log members
E) any control file

5. The application workload on your database is same between 10 a.m. and 11 a.m. on weekdays. Suddenly you observe poor performance between 10 a.m. and 11 a.m. in the middle of the week. How would you identify the changes in configuration settings, workload profile, and statistics to diagnose the possible causes of the performance degradation?

A) by running the Automatic Database Diagnostic Monitor (ADDM)
B) by analyzing the output of the V$ACTIVE_SESSION_HISTORY view
C) by using the Automatic Workload Repository report
D) by using the SQL access advisor
E) by using the Automatic Workload Repository Compare Period report

Solutions: