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Oracle database 10g:Administration I Sample Questions:

1. Which three statements are true regarding the logical structure of the Oracle database? (Choose three.)

A) Multiple tablespaces can share single data file.
B) Each data block in the database always corresponds to one OS block.
C) Each segment contains one or more extents.
D) A data block is the smallest unit of I/O for data files.
E) It is possible to have tablespaces of different block sizes in a database.

2. Which two statement about Automatic Storage Management (ASM) are true? (Choose two.)

A) ASM supports the Oracle database and operating system files.
B) ASM can be used to store trace files, alert log files, and the server parameter file (SPFILE).
C) ASM provides mirroring on file by file basis.
D) ASM provides automatic load balancing across all ASM disks.

3. 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 command fails with integrity violation error.
B) 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.
C) 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.
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.

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

5. You want to move all the objects of the APPS user in the test database to the DB_USER schema of the production database. Which option of IMPDP would you use to accomplish this task?

A) SCHEMAS
B) FULL
C) REMAP_DATAFILES
D) REMAP_TABLESPACE
E) REMAP_SCHEMA

Solutions: