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Oracle database 10g:Administration I Sample Questions:

1. You perform differential incremental level 1 backups of your database on each working day and level 0 backup on Sundays. Which two statements are true about the differential incremental backups? (Choose two.)

A) The backup performed on each working day contains all the blocks that have changed since the last level 0 or level 1 backup.
B) The backup performed on each working day contains all the blocks that have changed since the last level 0 backup.
C) The backup performed on Sundays contains all the blocks that have changed since the last level 1 backup.
D) The backup performed on Sundays contains all the blocks that have ever been use in the database.

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

3. View the Exhibit to see the structure of the EMPLOYEES and DEPARTMENTS tables.
Your organization plans to dissolve the department with department ID 30. You execute the following command to delete rows from the DEPARTMENTS table: SQL>delete from DEPARTMENTS
where DEPT_ID = 30; The command fails and displays the following error: ERROR at line 1:
ORA-02292: integrity constraint (HR.SYS_C005374) violated - child record found Which two actions would you take to overcome this error? (Choose two.)

A) first, delete rows from the EMPLOYEES table for department id 30 and then delete the rows from the DEPARTMENTS table for department id 30
B) alter the foreign key constraint to include the on delete cascade option
C) first, delete all of the rows from EMPLOYEES table and then delete the rows from the DEPARTMENTS table for department id 30
D) first, drop the DEPARTMENTS table and then delete the rows from the EMPLOYEES table
E) first, drop the EMPLOYEES table and then delete the rows from the DEPARTMENTS table
F) alter the foreign key constraint to include the cascade option

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

5. You have a large amount of historical data in an operating system file. Some analysts in your organization need to query this data. The file is too large to load into your current database. Which is the most effective method to accomplish the task?

A) Upgrade the hardware/memory to accommodate the data.
B) Give analysts DBA privilege, so that they can query DBA_EXTERNAL_TABLES.
C) Load the data into your database by using the PARALLEL clause.
D) Use an external table so you can have the metadata available in your database, but leave the data in the operating system files.

Solutions: