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Oracle 1Z0-042 Exam Syllabus Topics:

Oracle database 10g:Administration I Sample Questions:

1. Your database is open, and you plan to perform Recovery Manager (RMAN) backups. Which three statements are true about these backups? (Choose three.)

A) The backups would be inconsistent.
B) The backups would be possible only if the database is running in NOARCHIVELOG mode.
C) The backups would be consistent.
D) The backups need not be restored during recovery in case of a media failure.
E) The backups need to be restored and database has to be recovered in case of a media failure.
F) The backups would be possible only if the database is running in ARCHIVELOG mode.

2. Due to media failure you lost one of the data files belonging to the USERS tablespace, and the tablespace is not available to use. Which statement regarding the status of the database is true?

A) The status of the database depends on the status of the USERS tablespace.
B) The database instance gets aborted.
C) The database gets dismounted.
D) The database becomes read only.
E) The database gets shut down automatically.
F) The database remains open.

3. Which two statements regarding the LOGGING clause of the CREATE TABLESPACE... statement are correct? (Choose two.)

A) If the tablespace is in the NOLOGGING mode, no operation on the tablespace will generate redo.
B) The tablespace-level logging attribute can be overridden by logging specifications at the table, index, materialized view, materialized view log, and partition levels.
C) This clause is not valid for a temporary or undo tablespace.
D) The tablespace will be in the NOLOGGING mode by default, if not specified while creating a tablespace.

4. A constraint in a table is defined with the INITIALLY IMMEDIATE clause. You executed the ALTER TABLE command with the ENABLE VALIDATE option to enable the constraint that was disabled. What are the two effects of this command? (Choose two.)

A) It fails if any existing row violates the constraint.
B) It prevents insert, update, and delete operations on the table while the constraint is in the process of being enabled.
C) It does not validate the existing data in the table.
D) It enables the constraint to be enforced at the end of each transaction.

5. You are using flat files as the data source for one of your data warehousing applications. You plan to move the data from the flat file structures to an Oracle database to optimize the application performance. In your database you have clustered tables. While migrating the data, you want to have minimal impact on the database performance and optimize the data load operation. Which method would you use to load data into Oracle database?

A) use the conventional path data load of SQL*Loader utility
B) use the Oracle Data Pump export and import utility
C) use the external table population
D) use the direct path data load of Oracle export and import utility

Solutions: