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Oracle database 10g:Administration I Sample Questions:

1. View the Exhibit.
Which statement causes more undo generation?

A) DELETE FROM emp WHERE empno=7934;
B) SELECT * FROM emp;
C) INSERT INTO emp VALUES(7999,'JHON','CLERK',7782,'10-MAY-83',1500,NULL,10);
D) UPDATE emp SET comm=400 WHERE empno=7844;

2. The application development team has developed PL/SQL procedures and functions for different purposes and calls them as and when required. The loading of individual procedures or functions into memory degrades performance with every call. Also, it causes a security problem for individual subprograms and loss of program units when the whole system is transported into a new location. Which method would you recommend to the application developers to solve this problem?

A) using anonymous PL/SQL blocks instead of subprograms
B) referring to views instead of tables inside the subprograms
C) creating PL/SQL packages to include interrelated subprograms
D) avoiding the use of cursors in the subprograms

3. 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 Enterprise Manager to create a new database with the Online Transaction Processing (OLTP) option.
D) Use the CREATE DATABASE .. command to create the database with Automatic Storage Management (ASM) file system.
E) Use the CREATE DATABASE .. command to create the database with Oracle-managed files.

4. You received complaints about the degradation of SQL query performance. You identified top SQL queries that consume time. What would be your next step to find out recommendations about statistics collection and restructuring of the SQL statement to improve query performance?

A) run Segment Advisor
B) run the Automatic Workload Repository (AWR) report
C) run the Automatic Database Diagnostic Monitor (ADDM) on top SQL statements
D) run SQL Tuning Advisor on top SQL statements

5. You have to shut down the database instance with the ABORT option because of a hardware failure. Which statement is true about the subsequent opening of the database?

A) The database would not open, and it would stop at mount stage.
B) The database would not open, and you have to perform database recovery to open it.
C) The database would open normally.
D) The database would open after automatically performing instance recovery.

Solutions: