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Oracle database 10g:Administration I Sample Questions:

1. Which two statements are true about the Automatic Database Diagnostic Monitor (ADDM)? (Choose two.)

A) The ADDM analysis provides only the diagnostic information but does not provide recommendations.
B) The results of the ADDM analysis are stored in the Automatic Workload Repository (AWR).
C) The ADDM requires at least four AWR snapshots for analysis.
D) The ADDM calls other advisors if required, but does not provide recommendations about the advisors.
E) The ADDM runs after each AWR snapshot is collected.

2. Examine the following commands executed in your database:
SQL> ALTER SESSION RECYCLEBIN=ON;
Session altered
SQL> CREATE TABLE emp TABLESPACE tbsfd AS SELECT * FROM hr.employees;
Table created.
Further, you executed the following command to drop the table:
SQL> DROP TABLE emp;
Table dropped.
What happens in this scenario?

A) The table is moved to the SYSAUX tablespace.
B) The table is removed from the database permanently.
C) The table is moved to the SYSTEM tablespace.
D) The table is renamed and remains in the TBSFD tablespace.

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

4. Which three statements are true regarding the logical structure of the Oracle database? (Choose three.)

A) Multiple tablespaces can share single data file.
B) Each segment contains one or more extents.
C) Each data block in the database always corresponds to one OS block.
D) It is possible to have tablespaces of different block sizes in a database.
E) A data block is the smallest unit of I/O for data files.

5. You received complaints about the degradation of SQL query performance. You identified top SQL queries that consume time. What would be your next step to find out recommendations about statistics collection and restructuring of the SQL statement to improve query performance?

A) run SQL Tuning Advisor on top SQL statements
B) run the Automatic Database Diagnostic Monitor (ADDM) on top SQL statements
C) run Segment Advisor
D) run the Automatic Workload Repository (AWR) report

Solutions: