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Oracle database 10g:Administration I Sample Questions:

1. You are working on a database created with the Oracle Database 10g software in which the initialization parameter COMPATIBLE is set to 10.0.0. The hr_tbs tablespace in the database is created as follows:
CREATE TABLESPACE hr_tbs DATAFILE '/oracle/oradata/hr_tbs.dbf' SIZE 50M;
View the Exhibit to see the properties of the database.
Which statement is correct in this scenario?

A) All the tablespaces in the database must be of the smallfile tablespace type.
B) All the tablespaces in the database will be locally managed by default.
C) hr_tbs is a dictionary-managed tablespace.
D) The tablespace type bigfile or smallfile must be mentioned in the command.
E) hr_tbs is a bigfile tablespace.

2. You scheduled a backup by using the Schedule Backup option in Oracle Enterprise Manager. Which statement about the script created by Oracle Enterprise Manager is true?

A) It is a PL/SQL file.
B) It is a SQL script.
C) It is an operating system (OS) file.
D) It is a Recovery Manager (RMAN) script.

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

A) 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.
B) It can be converted to a B-tree index by using the ALTER INDEX command.
C) It is recommended for the columns that have unique values.
D) Updating the key column locks the whole bitmap segment that contains the bit for the key value to be updated.

4. Which two statements are true about the primary key constraint in a table? (Choose two.)

A) The primary key constraint can be imposed by combining more than one column.
B) It is not possible to disable the primary key constraint.
C) The non-deferrable primary key constraint creates an unique index on the primary key column if it is not already indexed.
D) The primary key constraint can be referred by only one foreign key constraint.
E) It is possible to have more than one primary key constraint in a single table.

5. In your database, the Log Writer (LGWR) process is unable to write to a member of a current redo log group due to read/write failure. Which two effects would you see in your database? (Choose two.)

A) The database instance aborts.
B) The status of the group changes to INACTIVE and an error message would be written to the alert log file and LGWR trace file.
C) Writing proceeds as normal. LGWR writes to the available members of a group and ignores the unavailable members.
D) The database operation temporarily halts till the member becomes available.
E) The member would be marked as STALE and an error message would be written to the alert log file and LGWR trace file.

Solutions: