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Oracle database 10g:Administration I Sample Questions:

1. You are working on an online transaction processing (OLTP) system. You notice that a PL/SQL procedure got executed twice at 2:00 p.m. This has incorrectly updated the EMP_SAL table. How would you revert the table to its state at 2:00 p.m.?

A) Use Flashback Table feature to revert the changes.
B) Issue the rollback statement with system change number (SCN).
C) Restore the entire database from the recent backup and open it.
D) Perform point-in-time recovery to 2:00 p.m.

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

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

3. In your database, the snapshot interval is set to 10 minutes for the Automatic Workload Repository (AWR). The database instance is running for the past 30 days.
View the Exhibit to examine the Automatic Database Diagnostic Monitor (ADDM) task.
The ADDM task is performed every 10 minutes, except the last task. What could be the reason for this?

A) The optimizer statistics for few objects in the database were locked before the last task.
B) The optimizer statistics was collected manually by using the DBMS_STATS package before the last task.
C) The snapshot retention period for the AWR was increased before the last task.
D) The STATISTICS_LEVEL initialization parameter was changed to BASIC and reset to TYPICAL before the last task.

4. Your test database is running in NOARCHIVELOG mode. What are the implications of this?

A) You can perform the backup of only the SYSTEM tablespace when the database is open.
B) You can perform closed database backups.
C) You cannot perform schema-level logical backups.
D) You can perform open database backups.

5. Which two statements are true regarding the SGA_TARGET initialization parameter? (Choose two.)

A) Reducing the value of the SGA_TARGET parameter takes away memory from both autotuned and manually sized components.
B) Increasing the value of the SGA_TARGET parameter distributes the increased memory among all the autotuned components.
C) It can be increased up to the value of the SGA_MAX_SIZE parameter.
D) Increasing the value of SGA_TARGET up to the value of SGA_MAX_SIZE disables the automatic shared memory management feature.

Solutions: