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Oracle database 10g:new features for Oracle8i ocps Sample Questions:

1. You need to ensure that the database users should be able to use the various flashback query features in order to go back in time by four hours. What would you do to achieve this? (Choose two.)

A) issue ALTER DATABASE FLASHBACK ON; command
B) set LOG_CHECKPOINT_INTERVAL=240
C) set SQL_TRACE=True
D) set FAST_START_MTTR_TARGET=240
E) set the RETENTION GUARANTEE clause for the undotablespace
F) set UNDO_RETENTION=14400
G) set DB_FLASHBACK_RETENTION_TARGET=14400

2. Consider an Oracle instance that is using Automatic Shared Memory Management. You set some of the System Global Area (SGA) parameters as shown below:
SGA_TARGET=200 MB SHARED_POOL_SIZE=20 MB DB_KEEP_CACHE_SIZE=30 MB
Which two statements are correct in this scenario? (Choose two.)

A) If SGA_TARGET is reduced to 150 MB, then it will not affect the value of the DB_KEEP_CACHE_SIZE parameter.
B) 250 MB will be allocated among the auto-tuned SGA components.
C) Shared pool size will never shrink below 20 MB.
D) A maximum of 20 MB will be allocated to the shared pool.
E) 230 MB will be allocated among the auto-tuned SGA components.

3. Consider the following configuration:
/devices/D1 is a member of disk group dgroupA. /devices/D2 is a member of disk group dgroupA. /devices/D3 is a member of disk group dgroupA.
You plan to add a new disk, /devices/D4, to the disk group dgroupA and execute the following command:
SQL> ALTER DISKGROUP dgroupA ADD DISK '/devices/D*';
Which task would be accomplished by the command?

A) The command will be ignored because disks starting with "D" are already members of the disk group.
B) The command first detaches all the member disks starting with "D" and then reattaches all of them including the new disk.
C) The command would result in an error because no wildcard characters can be used in the disk name.
D) The command adds the new disk, D4, to the disk group.
E) The command would result in an error because there is no disk by the name "/devices/D*".

4. You executed the following SQL statement to shrink the EMPLOYEES table segment stored in the EXAMPLE tablespace:
ALTER TABLE employees SHRINK SPACE CASCADE;
Which statement is correct in this scenario?

A) The EMPLOYEES table will be changed to read-only mode during the shrink operation.
B) The indexes created on the EMPLOYEES table will need to be rebuilt after the shrink operation is over.
C) Data manipulation language (DML) operations will not be possible on the EMPLOYEES table during the COMPACTION phase of the shrink operation.
D) The shrink behavior will be cascaded to all dependent segments of the table that support a shrink operation.
E) The data in the segment will be compacted but the high water mark will not be adjusted.

5. Which two statements are true regarding the use of UTF-16 encoding? (Choose two.)

A) enables easier loading of multinational data
B) European characters are represented in one or two bytes
C) uses a fixed-widthmultibyte encoding sequence
D) uses a variable-widthmultibyte encoding sequence
E) Asian characters are represented in three characters

Solutions: