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Oracle Database 11g: Administration I Certification Exam

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Oracle 1Z0-052 Free Practice Questions

Q1. You perform differential incremental level 1 backups of your database on each working day and level 0 backup on Sunday to tape:

Which two statements are true about differential incremental backups? (Choose two.)

A. The backup performed on Sundays contains all the blocks that have ever been used in the database

B. The backup performed on Sundays contains all the blocks that have changed since the last level 1 backup

C. The backup performed on each working day contains all the blocks that have changed since the last level 0 backup

D. The backup performed on Monday contains all the blocks that have changed since the level 0 backup and every other working day contains all the blocks that have changed since the level 1 backup

Answer: AD

Q2. In a new installation of Oracle Database 11g, you perform these activities:

1. Organize software and data on different subdirectories to avoid poor performance.

2. Use consistent naming conventions for database files.

3. Separate administrative information pertaining to the database in different directories.

Which option corresponds to the type of activities you performed?

A. Oracle Managed Files

B. Oracle Grid Architecture

C. Optimal Flexible Architecture

D. Oracle database architecture

E. Automatic Storage Management

Answer: C

Q3. For which database operation would you need the database to be in the MOUNT state?

A. Renaming the control files

B. Re-creating the control files

C. Dropping a user in your database

D. Dropping a tablespace in your database

E. Configuring the database instance to operate in the ARCHIVELOG or NOARCHIVELOG modes

Answer: E

Q4. You want to access employee details contained in flat files as part of the EMPLOYEE table. You plan to add a new column to the EMPLOYEE table to achieve this.

Which data types would you use for the new column?

A. CLOB

B. BLOB

C. BFILE

D. LONG RAW

Answer: C

Q5. Which task would you perform before you run Oracle Universal Installer (OUI) in silent or suppressed mode for an installation?

A. Run the root.sh script.

B. Create the oraInst.loc file.

C. Create the tnsnames.ora file.

D. Run the oraInstRoot.sh script.

Answer: B

Q6. Which two statements correctly describe the relation between a data file and the logical database structures? (Choose two)

A. An extent cannot spread across data files.

B. A segment cannot spread across data files.

C. A data file can belong to only one tablespace.

D. A data file can have only one segment created in it.

E. A data block can spread across multiple data files as it can consist of multiple operating system (OS) blocks.

Answer: AC

Q7. You are installing Oracle Database 11g on a machine. When you run the installer, the Universal Installer (OUI) shows the message that says one of the product-specific prerequisite checks has failed:

Checking available swap space requirements ...

Expected result: 1512MB

Actual Result: 1018MB

Check complete. The overall result of this check is: Failed <<<< Problem: The system does not have the required swap space.

What happens to the installation in this situation?

A. It can be continued.

B. It resizes the swap space automatically when you proceed further.

C. It can be continued, but the instance cannot be started without increasing the swap space.

D. It shows a message saying one or more prerequisite checks have failed and the installation cannot proceed.

Answer: A

Q8. Your database instance is functional for the past one month. The Automatic Workload Repository (AWR) snapshot retention is set to 7 and the STATISTICS_LEVEL initialization parameter is set to TYPICAL. You receive a complaint about the poor performance of the database between 7 PM and 9 PM of the previous day. Choose two actions any of which can be referred to first to diagnose the problem. (Choose two.)

A. Use the Active Session History report.

B. Use the AWR Compare Periods report.

C. Use an ADDM analysis between 7 PM and 9 PM of the previous day.

D. Use the AWR Compare Period report between 7 PM and 9 PM of the previous day.

Answer: BC

Q9. Which two statements are true regarding transactions in an Oracle database? (Choose two.)

A. Multiple transactions can use the same undo segment.

B. A transaction is assigned an undo segment when it is started.

C. More than one transaction cannot share the same extent in the undo tablespace.

D. The transactions use system undo segment to store undo data if all the segments in the undo tablespace are used.

Answer: AB

Q10. The HR user creates a stand-alone procedure as follows and grants the EXECUTE privilege on the procedure to many database users:

CREATE OR REPLACE PROCEDURE create_dept ( v_deptno NUMBER, v_dname VARCHAR2,

v_mgr NUMBER, v_loc NUMBER)

BEGIN

INSERT INTO hr.departments VALUES (v_deptno, v_dname, v_mgr, v_loc);

END;

The users having permission to execute the procedure are able to insert records into the

DEPARTMENTS table even though they do not have the INSERT privilege on the table. You want only those users who have privileges on the DEPARTMENTS table to be able to execute the procedure successfully.

What would you suggest to the PL/SQL developers to achieve this?

A. Create the procedure with definer's right.

B. Create the procedure with invoker's right.

C. Grant the EXECUTE privilege with GRANT OPTION on the procedure to selected users.

D. Create the procedure as part of a PL/SQL package and grant the EXECUTE privilege on the package to selected users.

Answer: B

Q11. In which of the scenario will the DBA perform recovery? (Choose all that apply.)

A. The alert log file is corrupted

B. A tablespace is accidentally dropped

C. One of the redo log members is corrupted

D. A database user terminates the session abnormally

E. The hard disk on which the data files is stored is corrupted

Answer: BE

Q12. View the Exhibit and examine the attributes of an undo tablespace. In an OLTP system, the user SCOTT has started a query on a large table in the peak transactional hour that performs bulk inserts. The query runs for more than 15 minutes and then SCOTT receives the following error:

ORA-01555: snapshot too old What could be the reason for this error?

Exhibit:

A. The query is unable to get a read-consistent image.

B. There is not enough space in Flash Recovery Area.

C. There is not enough free space in the flashback archive.

D. The query is unable to place data blocks in undo tablespace.

Answer: A

Q13. You have an ORDERS table with the following structure:

The table has data in the ODATE column for all rows. Many orders are placed in a single day. You need to ensure that the ODATE column must contain data for every order in future.

Which method would serve the purpose?

A. Modify the column using the ALTER TABLE ... MODIFY command.

B. Add a UNIQUE constraint to the column using the ALTER TABLE ... ADD CONSTRAINT command.

C. Add a NOT NULL constraint to the column using the ALTER TABLE ... ADD CONSTRAINT command.

D. Add a PRIMARY KEY constraint to the column using the ALTER TABLE ... ADD CONSTRAINT command.

Answer: A

Q14. View the Exhibit. What would happen if Oracle Home is not empty?

A. The installation will not be continued until the location is empty.

B. The installation will proceed without overwriting the existing files.

C. The installation can be continued, but the existing files will be overwritten.

D. The installation terminates automatically after showing an error message.

Answer: A

Q15. View the Exhibits and examine lock waits. Users HR and SH complain that their transactions on one of the application tables, EMP, are waiting for response.

Which action would you take to release the lock and enable users HR and SH to continue with their transactions?

07 (exhibit):

A. Kill the session of the user SCOTT with session ID118.

B. Issue manual checkpoint using the ALTER SYSTEM command.

C. Modify the profile used by user SCOTT to reduce the CONNECT_TIME limit.

D. Flush the Shared Pool to remove the SQL statement causing "wait" in memory.

Answer: A

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