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Oracle database 10g:Administration I Sample Questions:

1. You work in a data warehouse environment that involves the execution of complex queries. The current content of the SQL cache holds the ideal workload for analysis. You want to analyze only few most resource-intensive statements. What would be your suggestion to receive recommendations on the efficient use of indexes and materialized views to improve query performance?

A) Run the Automatic Database Diagnostic Monitor (ADDM).
B) Run the SQL Access Advisor.
C) Run the Automatic Workload Repository (AWR) report.
D) Run the SQL Tuning Advisor (STA).

2. You created a response file and want to check it before starting installations in silent mode. You started installation of Oracle software in interactive mode by providing the response file. In the middle of the installation, you realize that the behavior of the Oracle Universal Installer (OUI) is not consistent with the response file. What action would you take to detect the cause of this behavior?

A) Compare the contents of the install.log file with the response file.
B) Compare the contents of the installActions.log file with that of the response file.
C) Refer to the contents of the oraInst.loc file to verify the steps performed by OUI.
D) Refer to the alert log file for information regarding the actions performed by OUI during installation.

3. You executed the following command to export the EMPLOYEES table from a remote machine:
$ EXPDP hr/[email protected]
DUMPFILE=my_dir:exp_hr.log
LOGFILE=data_pump_dir:log_hr.log
TABLES=employees
What would be the outcome of this command?

A) The command fails with an error because DATA_PUMP_DIR directory have higher precedence over the per-file directory.
B) The command would execute successfully and the export dump file would be created in the destination of the directory object MY_DIR.
C) The command fails with an error because no absolute path is specified for log file and dumpfile.
D) The command would execute successfully. But log file would not be created as DATA_PUMP_DIR directory is only accessible to user with SYSDBA privilege.

4. 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) It is terminated after receiving the error and JIM can continue with his transaction.
B) SCOTT has to reexecute the last command in the transaction after he commits the transaction.
C) The transaction in 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.

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

Solutions: