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Oracle database 10g:Administration I Sample Questions:

1. Your database is open and users are connected using the LISTENER listener. The new DBA of the system stops the listener by using the following command:
LSNRCTL> STOP
What would happen to the sessions that are presently connected to the database instance?

A) The sessions are not allowed to perform any operations till the listener is started.
B) The sessions are not affected and continue to function normally.
C) The active transactions are rolled back and the sessions get terminated.
D) The sessions are able to perform only queries.

2. Your database is started by using the server parameter file (SPFILE). You issued this command to change the value of the LOG_BUFFER initialization parameter:
ALTER SYSTEM SET LOG_BUFFER=24M SCOPE=BOTH;
What would be the outcome of this command?

A) You need to restart the database so that parameter changes can come into effect.
B) The parameter value would be changed and it would come into effect immediately.
C) The command would return an error because LOG_BUFFER is a static parameter.
D) The command would succeed only if initialization parameter LOG_ARCHIVE_MAX_PROCESS is set to value 2.

3. The session of user SCOTT receives the following error after executing an UPDATE command on the EMP table:
ERROR at line 1:
ORA-00060: deadlock detected while waiting for resource
On investigation, you find that a session opened by user JIM has a transaction that caused the deadlock.
Which two statements are true regarding the session of SCOTT in this scenario? (Choose two.)

A) SCOTT has to reexecute the last command in the transaction after he commits the transaction.
B) The transaction in it is terminated after receiving the error and JIM can continue with his transaction.
C) It is terminated after receiving the error and JIM can continue with his transaction.
D) SCOTT should perform a COMMIT or ROLLBACK to allow JIM to continue with his transaction.

4. Your database is running under automatic undo management and the UNDO_RETENTION parameter is set to 900 sec. You executed the following command to enable retention guarantee:
SQL> ALTER TABLESPACE undotbs1 RETENTION GUARANTEE;
What effect would this statement have on the database?

A) The extents containing committed data in the undo tablespace are never overwritten.
B) The extents which no longer contain uncommitted data in the undo tablespace are not overwritten for at least15 minutes.
C) The extents containing committed data in the undo tablespace are not overwritten until the instance is shut down.
D) The extents in undo tablespace retain data until the next full database backup.

5. You want to set up the Oracle Database 10g installation to follow the French language, with France as the territory, and the date to be displayed in French for all users' sessions. Which environmental variable would you set to achieve this objective?

A) NLS_DATE_LANGUAGE
B) NLS_NCHAR_CHARACTERSET
C) NLS_LANGUAGE
D) NLS_LENGTH_SEMANTICS
E) NLS_CHARACTERSET
F) NLS_TERRITORY
G) NLS_LANG

Solutions: