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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

Question 1

After a power failure, you noticed that one of your cluster database instances did not start automatically, whereas all other instances came up successfully. What would you do to determine the precise cause for the instance startup failure? (Choose three.)

A. Check the resource state by using the CRS_STAT command.
B. Check the alert.log file that belongs to the instance that did not start.
C. Reboot the node where the failing instance resides to check if the problem is persistent.
D. Enable extra debugging in the Oracle Clusterware software by using the CRSCTL command.
E. Check for OCR corruptions by using the OCRCHECK command.
F. Check the alert.log file that belongs to the Oracle Clusterware software.
G. Check if the Oracle Clusterware is functional by using the CRSCTL command.

Question 2

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

Question 3

Your company asked you to implement RAC to enhance the scalability and availability of the database that you manage. Your coworker suggested that you use ASM as the only storage option. However, you implemented RAC with Automatic Storage Management (ASM) as well as OCFS as storage options. What are the reasons for implementing both OCFS and ASM as storage options? (Choose all that apply.)

A. You do not want to store any file other than voting and OCR files in ASM.
B. You want to use the Oracle Managed Files (OMF) feature but that is not supported by ASM.
C. You do not want to use raw devices to store voting and OCR files.
D. You want to avoid keeping Oracle binaries on local storage.
E. You require OCFS to store archive log files because ASM does not support these files.

Question 4

Which statement is true regarding undo management in a RAC environment?

A. It is possible to store undo tablespaces on nonshared disks.
B. A RAC database contains one undo tablespace shared by all instances.
C. A RAC database must have defined only one undo tablespace for each instance.
D. You cannot mix automatic undo management and manual undo management.

Question 5

For which two server metrics can you define thresholds for your services? (Choose two.)

A. ELAPSED_TIME_PER_CALL
B. LOGICAL_READ_PER_CALL
C. PHYSICAL_READ_PER_CALL
D. CPU_TIME_PER_CALL
E. APPLICATION_WAIT_TIME
F. SQL EXECUTE ELAPSED TIME

Solutions: