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Oracle 1Z0-042 Exam Syllabus Topics:

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

2. You specified segment space management as automatic for a tablespace. What effect would this have on space management?

A) Extents would be managed by the freelists.
B) The segment would be managed by the freelists.
C) The segment would be managed by bitmaps.
D) Free space would be managed by the data dictionary.

3. Which two statements about Flashback Query are true? (Choose two.)

A) It fails when undo data pertaining to the transaction is overwritten.
B) It is generated by using the redo log files.
C) The database has to be opened with the resetlogs option after performing Flashback Query.
D) It can be performed to recover ALTER TABLE statements
E) It helps in row-level recovery from user errors.

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

5. View the Exhibit and examine the output.
Which statement describes the conclusion?

A) The shared pool size should be increased to accommodate the SQL statements.
B) The dictionary cache is consuming more space than the library cache.
C) The users should use bind variables instead of literals in the query.
D) Preparing indexes on the tables used in the SQL statements would improve the library cache performance.

Solutions: