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Oracle database 10g:Administration I Sample Questions:

1. The user SCOTT executes the following command successfully to increase the salary values in one of his sessions:
SQL> UPDATE emp SET sal=sal*1.15 WHERE deptno=20;
Before SCOTT ends the transaction, user HR who has the privileges on EMP table executes a query to fetch the salary details but finds the old salary values instead of the increased values.
Why does HR still see the old data?

A) because of redo data from redo log file
B) because of undo data from the undo tablespace
C) because of data from a temporary tablespace
D) because of data from database buffer cache

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

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

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

4. View the Exhibit to observe the message received while trying to drop the SL_REP user in
Oracle Enterprise Manager.
The SL_REP user owns objects and is currently connected to the database instance. What would happen if you click YES in the Exhibit?

A) The drop operation waits until the session started by the user ends.
B) An error is returned, and the user is not dropped.
C) The user is dropped successfully, and the session started by the user is killed.
D) The user is dropped, and the objects owned by the user are transferred to the recycle bin.

5. Which step do you need to perform to enable a user with the SYSDBA privilege to log in as SYSDBA in iSQL*Plus?

A) No special setup is needed for the user to connect as SYSDBA in iSQL*Plus.
B) The user must be granted the database administrator (DBA) privilege.
C) Set up a user in the Oracle Application Server Containers for J2EE (OC4J) user manager, and grant the webDba role to the user.
D) The user must be listed in the password file for the authentication.

Solutions: