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Oracle database 10g:Administration I Sample Questions:

1. View the Exhibit.
Which statement causes more undo generation?

A) DELETE FROM emp WHERE empno=7934;
B) UPDATE emp SET comm=400 WHERE empno=7844;
C) INSERT INTO emp VALUES(7999,'JHON','CLERK',7782,'10-MAY-83',1500,NULL,10);
D) SELECT * FROM emp;

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

A) It helps in row-level recovery from user errors.
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 fails when undo data pertaining to the transaction is overwritten.

3. In the PROD database you have granted the RESUMABLE system privilege to the CONNECT role. Resumable space operation has been enabled for all user sessions. You want users NOT to be aware of any kind of space-related problems while performing transactions. Instead, you want the problem to be resolved by a database trigger automatically. Which combination of triggering time and event would you use to achieve this objective?

A) AFTER SUSPEND
B) AFTER CREATE
C) AFTER TRUNCATE
D) AFTER INSERT OR DELETE OR UPDATE
E) BEFORE INSERT OR DELETE OR UPDATE
F) BEFORE CREATE
G) BEFORE SUSPEND

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

5. You find that the database performance degrades while you backup the PROD database using Recovery Manager (RMAN). The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation?

A) Increase Database Buffer Cache size to increase cache hits.
B) Configure Java Pool to cache the java objects.
C) Increase Shared Pool size to cache more PL/SQL objects.
D) Increase the total System Global Area (SGA) size to increase memory hits.
E) Configure Large Pool to be used by RMAN and shared server.
F) Configure Streams Pool to enable parallel processing.

Solutions: