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Oracle database 10g:Administration I Sample Questions:

1. When you try to start the Database Control by using the emctl start dbconsole command the following error is displayed:
TZ set to America/New_york
OC4J Configuration issue. /u01/app/oracle/product/10.1.0/db_1/oc4j/j2ee/OC4J_DBConsole_orcl.us.oracle.com not found.
Which two environment variables do you need to set appropriately to avoid such errors, and start the Database Control successfully? (Choose two.)

A) ORACLE_BASE
B) NLS_LANG
C) ORACLE_SID
D) ORACLE_HOME
E) LD_LIBRARY_PATH

2. View the Exhibit to observe the message received while trying to drop the SL_REP user in
Oracle Enterprise Manager.
The SL_REP user owns objects and is currently connected to the database instance. What would happen if you click YES in the Exhibit?

A) The drop operation waits until the session started by the user ends.
B) The user is dropped successfully, and the session started by the user is killed.
C) An error is returned, and the user is not dropped.
D) The user is dropped, and the objects owned by the user are transferred to the recycle bin.

3. User SCOTT executes the following command on the EMP table but has not issued COMMIT, ROLLBACK, or any data definition language (DDL) command:
SQL> SELECT job FROM emp
2 WHERE job='CLERK' FOR UPDATE OF empno;
SCOTT has opened another session to work with the database. Which three operations would wait when issued in SCOTT's second session? (Choose three.)

A) SELECT job FROM emp WHERE job='CLERK' FOR UPDATE OF empno;
B) INSERT INTO emp(empno,ename) VALUES (1289,'Dick');
C) DELETE FROM emp WHERE job='MANAGER';
D) LOCK TABLE emp IN SHARE MODE;
E) LOCK TABLE emp IN EXCLUSIVE MODE;

4. While running the Oracle Universal Installer on a Unix platform to install Oracle Database 10g software, you are prompted to run orainstRoot.sh script. What does this script accomplish?

A) It creates the base directory.
B) It creates the Inventory pointer file.
C) It creates the pointer file.
D) It creates the Oracle user for installation.
E) It modifies the Unix kernel parameters to match Oracle's requirement.

5. Which two statements are true about a bitmap index? (Choose two.)

A) Updating the key column locks the whole bitmap segment that contains the bit for the key value to be updated.
B) It is recommended for the columns that have unique values.
C) It can be converted to a B-tree index by using the ALTER INDEX command.
D) It has a bitmap segment for each distinct value in the key column, containing a string of bits in which each bit represents the presence or absence of a key column value.

Solutions: