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Oracle Database 10g R2: Administering RAC Sample Questions:

1. You are working as a DBA in a RAC environment that is available for testing. The RAC environment has all the database files stored in the OCFS file system. You plan to install ASM and move all the database files to ASM to achieve better performance. During the installation, you selected redundancy level as normal for the disk group being added. What is the reason for selecting this redundancy level?

A) You do not want to have any mirroring in the disk group.
B) You have two failure groups defined, so you want to use two-way mirroring.
C) You have three failure groups defined, so you want to use three-way mirroring.
D) You want to use hardware mirroring.

2. Several steps must be followed to successfully add a node to your cluster database. Assuming that a UNIX platform is used, which of the steps listed below is not correct? (Choose the incorrect step.

A) Add instances via DBC
B) Configure the OS and hardware for the new node.
C) Add the node to the cluster using the addnode.sh script run from ORA_CRS_HOME.
D) Add the RAC software to the new node using orainstRoot.sh from ORACLEJHOM
E) Reconfigure listeners for the new node with netca.

3. To complete a cluster database creation, the DBA must choose the cluster database storage method. Which storage choice is not correct? (Choose the incorrect one.)

A) Raw Devices
B) Automatic Storage Management (ASM)
C) Standard UNIX file system
D) Supported SAN/NAS storage
E) Cluster File System

4. Which two statements about the correct configuration of the flash recovery area in a RAC environment are true? (Choose two.)

A) Set the flash recovery area size to no smaller than 20 GB.
B) The use of a common flash recovery area is not recommended on clusters containing more than four nodes.
C) Set the DB_RECOVERY_FILE_DEST_SIZE initialization parameter to the same value on all instances.
D) Set the DB_RECOVERY_FILE_DEST initialization parameter to the same value on all instances.

5. The following query shows four MEMBER disks and three CANDIDATE disks.
SQL> select name, header_status, path from v$asm_disk;
NAME HEADER STATUS PATH
CANDIDATE /dev/rdsk/diska5
CANDIDATE /dev/rdsk/diska6
CANDIDATE /dev/rdsk/diska7
DISK01 MEMBER /dev/rdsk/diska1
DISK02 MEMBER /dev/rdsk/diska2
DISK03 MEMBER /dev/rdsk/diska3
DISK04 MEMBER /dev/rdsk/diska4
7 rows selected.
Using SQLPIus you want to add /dev/rdsk/diska5 and /dev/rdsk/diska6 to diskgroup DGROUP1
DGROUP1 is currently mounted.
Pick the statement that would fail to add diska5 and diska6.

A) ALTER DISKGROUP dgroupl ADD DISK
'/dev/rdsk/diska5',
'/dev/rdsk/diska6';
B) ALTER DISKGROUP dgroupl ADD DISK '/dev/rdsk/diska*';
C) ALTER DISKGROUP dgroupl ADD DISK '/dev/rdsk/diska[56]';
D) ALTER DISKGROUP dgroupl ADD DISK
'/dev/rdsk/diska5' name disk05,
'/dev/rdsk/diska6' name disk06;
E) ALTER DISKGROUP dgroupl ADD DISK '/dev/rdsk/disk*5', '/dev/rdsk/disk*6';

Solutions: