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Oracle 1Z0-042 Exam Syllabus Topics:

Oracle database 10g:Administration I Sample Questions:

1. You executed the following command to export the EMPLOYEES table from a remote machine:
$ EXPDP hr/[email protected]
DUMPFILE=my_dir:exp_hr.log
LOGFILE=data_pump_dir:log_hr.log
TABLES=employees
What would be the outcome of this command?

A) The command fails with an error because DATA_PUMP_DIR directory have higher precedence over the per-file directory.
B) The command would execute successfully and the export dump file would be created in the destination of the directory object MY_DIR.
C) The command fails with an error because no absolute path is specified for log file and dumpfile.
D) The command would execute successfully. But log file would not be created as DATA_PUMP_DIR directory is only accessible to user with SYSDBA privilege.

2. You are working on the 24X7 database with high transaction volume, to ensure faster instance recovery on your database you set the FAST_START_MTTR_TARGET initialization parameter to a very low value. What effect it will have on the database?

A) The mean time to recover (MTTR) would be increased.
B) The overall database performance would be degraded.
C) The database performance would be enhanced.
D) The redo log files would be get filled more frequently.

3. Which statement is true when you run the SQL Tuning Advisor with limited scope?

A) SQL structure analysis is not performed for the SQL statements.
B) Access path analysis is not performed for the SQL statements.
C) The staleness and absence of the statistics are not checked for the objects in the query supplied to the SQL Tuning Advisor.
D) SQL Profile recommendations are not generated for the SQL statements.

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

5. You work in a data warehouse environment that involves the execution of complex queries. The current content of the SQL cache holds the ideal workload for analysis. You want to analyze only few most resource-intensive statements. What would be your suggestion to receive recommendations on the efficient use of indexes and materialized views to improve query performance?

A) Run the Automatic Database Diagnostic Monitor (ADDM).
B) Run the SQL Access Advisor.
C) Run the Automatic Workload Repository (AWR) report.
D) Run the SQL Tuning Advisor (STA).

Solutions: