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Oracle database 10g:Administration I Sample Questions:

1. Your database is in NOARCHIVELOG mode. After which two operations you should take the backup of control file ? (Choose two.)

A) adding a new user to the database
B) dropping a user from the database
C) dropping a data file from a tablespace
D) dropping a table from the database
E) adding a new tablespace to the database

2. View the Exhibit and analyze the CREATE TABLE statements used to create the ITEMS and ORDERS tables.
The ITEMS table has 50 rows and ORDERS table has 500 rows. Because you decide to not deal with the item code 188 in future, you execute the following command to remove the item:
SQL> DELETE FROM items WHERE item_code=188;
What is the effect of this command?

A) The row containing the value 188 corresponding to the ITEM_CODE column is deleted from the ITEMS table, and the dependent rows in the ORDERS table are also deleted automatically.
B) The command fails with integrity violation error.
C) The row containing the value 188 corresponding to the ITEM_CODE column is deleted from the ITEMS table, and the foreign key constraint is disabled in the ORDERS table.
D) The row containing the value 188 corresponding to the ITEM_CODE column is deleted from the ITEMS table, and the dependent rows in the ORDERS table are populated with
NULL values in their ITEM_CODE columns.

3. The employee IDs of employees who have made sales in the company are transferred from the EMPLOYEES table to the BONUS table with a default bonus value. Later, the human resources department decides to give bonuses to employees as per the following conditions:
1.Employees with a salary of $8,000 or less should receive a bonus.
2.Employees who have not made sales get a bonus of 1% of their salary.
3.Employees who already made sales get an increase in their bonus equal to 1% of their salary.
What would you do to implement these changes in one step?

A) Use the MERGE statement.
B) Use a correlated UPDATE statement.
C) Use a multitable insert operation.
D) Use SQL*Loader utility.

4. After being hired as a database administrator, you find that there is only one database that
is functional and that is being accessed by the applications. You want to create a replica of the database, to be used for testing purposes. What is the best method to create the replica?

A) create a database by using CREATE DATABASE .. command and manually copy the data
B) use DBCA to create a template from the existing database to contain the database structure with data files and then use the same template to create the database in the new location
C) use DBCA to create a template from the existing database to contain the database structure and then manually copy the data using Oracle Data Pump
D) use Database Configuration Assistant (DBCA) to create a template from the existing database to contain the database structure

5. Which is the memory area that is created when a dedicated server process is started, and contains data and control information for that server process?

A) Shared Pool
B) SGA
C) PGA
D) Streams Pool

Solutions: