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Oracle database 10g:Administration I Sample Questions:

1. After being hired as a database administrator, you find that there is only one database that is functional and that is being accessed by the applications. You want to create a replica of the database, to be used for testing purposes. What is the best method to create the replica?

A) use Database Configuration Assistant (DBCA) to create a template from the existing database to contain the database structure
B) use DBCA to create a template from the existing database to contain the database structure with data files and then use the same template to create the database in the new location
C) create a database by using CREATE DATABASE .. command and manually copy the data
D) use DBCA to create a template from the existing database to contain the database structure and then manually copy the data using Oracle Data Pump

2. Which three descriptions are correct about the effects of the TRUNCATE command on a table? (Choose three.)

A) The child table is truncated when the TRUNCATE command is applied on the parent table.
B) Delete triggers on the table are fired during the execution of the TRUNCATE command.
C) The corresponding indexes for the table are also truncated.
D) Very little or no undo data is generated during the execution of the TRUNCATE command.
E) The high-water mark (HWM) is set to point to the first useable data block in the table segment.

3. Your alert log file has the following information:
Tue May 25 17:43:38 2004
ORA-00060: Deadlock detected. More info in file /u01/app/oracle/admin/ORCL/udump/orcl_ora_3173.trc.
What would you do to ensure that database is still running correctly?

A) examine the trace file and kill the session that caused the deadlock
B) examine the trace file for details and use the Undo Advisor to rollback the transaction that caused the deadlock
C) examine the trace file and kill both the sessions responsible for the deadlock
D) examine the trace file for details and ask the user who caused the deadlock to roll back the transaction
E) examine the trace file for details and remember that deadlocks are resolved automatically by Oracle database

4. Due to media failure you lost one of the data files belonging to the USERS tablespace, and the tablespace is not available to use. Which statement regarding the status of the database is true?

A) The database instance gets aborted.
B) The database gets dismounted.
C) The database remains open.
D) The database gets shut down automatically.
E) The status of the database depends on the status of the USERS tablespace.
F) The database becomes read only.

5. 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) Restore the entire database from the recent backup and open it.
C) Perform point-in-time recovery to 2:00 p.m.
D) Issue the rollback statement with system change number (SCN).

Solutions: