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Oracle 1Z0-042 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Backup and Recovery | - User-managed backup and recovery - Flashback concepts (intro level) - Recovery Manager (RMAN) basics |
| Topic 2: Database Management | - Managing database instances - User and privilege management - Managing storage structures |
| Topic 3: Database Installation and Configuration | - Creating and configuring databases - Installing Oracle Database 10g software - Oracle Net Services configuration basics |
| Topic 4: Database Security | - Authentication and authorization - Roles and privileges management |
| Topic 5: Oracle Database Architecture | - Database storage structures (datafiles, control files, redo logs) - Instance architecture (SGA, PGA, background processes) - Memory structures and process management |
Oracle database 10g:Administration I Sample Questions:
Question 1
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. SCOTT should perform a COMMIT or ROLLBACK to allow JIM to continue with his transaction.
D. The transaction in it is terminated after receiving the error and JIM can continue with his transaction.
Question 2
In your database, the snapshot interval is set to 10 minutes for the Automatic Workload Repository (AWR). The database instance is running for the past 30 days.
View the Exhibit to examine the Automatic Database Diagnostic Monitor (ADDM) task.
The ADDM task is performed every 10 minutes, except the last task. What could be the reason for this?
A. The STATISTICS_LEVEL initialization parameter was changed to BASIC and reset to TYPICAL before the last task.
B. The optimizer statistics for few objects in the database were locked before the last task.
C. The optimizer statistics was collected manually by using the DBMS_STATS package before the last task.
D. The snapshot retention period for the AWR was increased before the last task.
Question 3
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. Perform point-in-time recovery to 2:00 p.m.
B. Restore the entire database from the recent backup and open it.
C. Issue the rollback statement with system change number (SCN).
D. Use Flashback Table feature to revert the changes.
Question 4
The junior DBA in your organization has accidentally deleted the alert log file. What will you do to create new alert log file?
A. Change the value for the BACKGROUND_DUMP_DEST parameter.
B. Create the new text file file as ALERT.LOG.
C. No action required.The file would be created automatically by the instance.
D. You have to recover the alert log file from the valid backup.
Question 5
View the Exhibit to observe the privileges granted to the MGR_ROLE role. The SCOTT
user has been granted the CONNECT and RESOURCE roles only.
The database administrator (DBA) grants MGR_ROLE to the SCOTT user by using this
command:
SQL> GRANT MGR_ROLE TO SCOTT WITH ADMIN OPTION;
Which statement is true about the SCOTT user after he is granted this role?
A. The SCOTT user can grant only the MGR_ROLE role to other users but not the privileges in it.
B. The SCOTT user can grant the MGR_ROLE role and the privileges in it to other users.
C. The SCOTT user can grant the privileges in the MGR_ROLE role to other users but not with ADMIN_OPTION.
D. The SCOTT user can grant the privileges in the MGR_ROLE role to other users but cannot revoke privileges from them.
Solutions:
| Question 1 Answer: B,C | Question 2 Answer: A | Question 3 Answer: D | Question 4 Answer: C | Question 5 Answer: A |
