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Oracle 1Z0-042 Exam Syllabus Topics:

Oracle database 10g:Administration I Sample Questions:

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

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

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

4. You created a response file and want to check it before starting installations in silent mode. You started installation of Oracle software in interactive mode by providing the response file. In the middle of the installation, you realize that the behavior of the Oracle Universal Installer (OUI) is not consistent with the response file. What action would you take to detect the cause of this behavior?

A) Compare the contents of the installActions.log file with that of the response file.
B) Refer to the contents of the oraInst.loc file to verify the steps performed by OUI.
C) Refer to the alert log file for information regarding the actions performed by OUI during installation.
D) Compare the contents of the install.log file with the response file.

5. You are working on a database created with the Oracle Database 10g software in which the initialization parameter COMPATIBLE is set to 10.0.0. The hr_tbs tablespace in the database is created as follows:
CREATE TABLESPACE hr_tbs DATAFILE '/oracle/oradata/hr_tbs.dbf' SIZE 50M;
View the Exhibit to see the properties of the database.
Which statement is correct in this scenario?

A) All the tablespaces in the database will be locally managed by default.
B) hr_tbs is a bigfile tablespace.
C) All the tablespaces in the database must be of the smallfile tablespace type.
D) hr_tbs is a dictionary-managed tablespace.
E) The tablespace type bigfile or smallfile must be mentioned in the command.

Solutions: