Oracle 11gocmu

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Oracle Database 11g Certified Master Upgrade Sample Questions:

1. You are managing an Oracle Database 11g ASM instance with a disk group dg01 having three disks. One of the disks in the disk group becomes unavailable because of power failure. You issued the following command to change the DISK_REPAIR_TIME attribute
from 3.6 hours to 5 hours:
ALTER DISKGROUP dg01 SET ATTRIBUTE 'disk_repair_time' = '5h';
To which disks in the disk group will the new value be applicable?

A) all disks in the disk group only if all of them are ONLINE
B) all disks that are currently in OFFLINE mode
C) all disks that are not currently in OFFLINE mode
D) all disks in the disk group

2. Which two statements are correct about database transportation? (Choose two.)

A) Recovery Manager (RMAN) is used to convert the necessary data files of the database if the target platform is different and has different endian format
B) The source and target platforms must be the same
C) The transported database must have the same database identifier (DBID) as the source database and cannot be changed
D) The COMPATIBLE parameter must be set to 10.0.0.0 or higher and the database must be opened in readonly mode before being transported
E) Redo logs, control files and temp files are also transported

3. Which statement is true about a running session that belongs to the online transaction processing (OLTP) group?

A) It switches to the LOW_GROUP consumer group if the session exceeds 10000 I/O requests or 2500 MB of data transfer and returns to the original group after the operation.
B) It permanently switches to the low_group consumer group if the session exceeds 10,000 I/O requests or 2,500 MB of data transfer.
C) It switches to the LOW_GROUP consumer group if the session exceeds 10000 I/O requests or 2500 MB of data transfer for queries, but not for data manipulation language (DML) operations.
D) It performs the first 10000 I/O requests or 2,500 MB of data transfer in the LOW-GROUP consumer group, and then switches to the original group.

4. Which statements are true regarding table compression? (Choose all that apply.)

A) It requires uncompress operation during I/O.
B) It incurs extra CPU overhead during DML as well as direct loading operations.
C) It saves disk space but has no effect on memory usage.
D) It saves disk space and reduces memory usage.
E) It incurs extra CPU overhead during DML but not direct loading operations.

5. You have lost datafiles 1 and 3 from your database, and the database has crashed. In what order should you perform the following steps to recover your database?
1.Take the datafiles that were lost offline.
2.startup mount the database
3.Issue the alter database open command.
4.Restore the datafiles that were lost
5.Recover the datafiles with the recover datafile command.
6.Bring the datafiles back online.
7.Recover the database with the recover database command.

A) 4, 7, 3
B) 2, 7, 3
C) 2, 1, 3, 4, 5, 6
D) 2, 4, 5, 3
E) 2, 4, 7, 3

Solutions: