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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 Automatic Workload Repository (AWR) report.
C) Run the SQL Tuning Advisor (STA).
D) Run the SQL Access Advisor.

2. You want to create a new optimized database for your transactional production environment to be used by a financial application. While creating the database, you want the Oracle software to take care of all basic settings to optimize the database performance. Which method would you use to achieve this objective?

A) Use Database Configuration Assistant (DBCA) to create the database with Transaction Processing template.
B) Use the Database Configuration Assistant (DBCA) to create the database with Oracle-managed files.
C) Use the CREATE DATABASE .. command to create the database with Oracle-managed files.
D) Use Enterprise Manager to create a new database with the Online Transaction Processing (OLTP) option.
E) Use the CREATE DATABASE .. command to create the database with Automatic Storage Management (ASM) file system.

3. User A executes the following command to update the TRANS table:
SQL> UPDATE B.trans SET tr_amt=tr_amt+500 WHERE c_code='C005';
Before user A issues a COMMIT or ROLLBACK command, user B executes the following
command on the TRANS table:
SQl> ALTER TABLE trans MODIFY (tr_type VARCHAR2(3));
What would happen in this scenario?

A) The ALTER TABLE command modifies the column successfully.
B) The ALTER TABLE command fails due to the resource being busy.
C) The transaction for user A is rolled back.
D) The ALTER TABLE command waits until user A ends the transaction.

4. Which three statements are true regarding the fine-grained auditing (FGA)? (Choose three.)

A) FGA enables a SQL predicate to define when to audit an event.
B) The audit trail for FGA is stored in the FGA_LOG$ table.
C) FGA includes the SQL statement used by the user as part of the audit event entry.
D) The audit trail for FGA is stored in the AUD_LOG$ table.
E) FGA is possible on SELECT statements only.
F) FGA audits DELETE statements only when audit columns are specified.

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

Solutions: