Oracle 1Z0-048 valid exam dumps : Oracle Database 10g R2: Administering RAC

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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

1. You are implementing a three-node RAC setup in your company. You have already performed these tasks:
1) Hardware and OS configuration 2) Cluster file system installation 3) Clusterware installation You executed the following command in one of the nodes: cluvfy stage -pre dbinst -n all
What is the reason for executing this command?

A) to check for the existence of Oracle database software installation files in the /stage directory on all the nodes
B) to check for node connectivity and Clusterware integrity
C) to check if the ORACLEJHOME environmental variable is set to a correct value or not before the database installation
D) to check whether the dbinst directory is available on all the nodes

2. You and your colleague are working with Oracle Support on a database instance stability issue. The Oracle Support engineer wants you to issue a crsctl debug log crs ?crsctl debug log crs command to assist you in your troubleshooting assignment. Why does the Oracle Support engineer want you to do this?

A) to enable extra debugging on the CRS daemon the next time the CRS daemon is started
B) to list what debugging options are available on the CRS daemon
C) to enable extra debugging on the currently running and CRS daemons as well as those that will run in the future
D) to list which debugging options are enabled on the CRS daemon
E) to enable extra debugging on the currently running CRS daemon

3. Which two statements about parallel recovery in a RAC environment are true? (Choose two.)

A) The use of the RECOVER Y_PARALLELISM initialization parameter is the only way to initiate parallel recovery.
B) The RECOVER Y_PARALLELISM initialization parameter causes serial recovery if the value is greater than two.
C) Parallel recovery is most effective at reducing recovery time while concurrently recovering several data files on several disks.
D) The RECOVERY_PARALLELISM initialization parameter specifies the number of redo application server processes participating in instance or media recovery.

4. After migrating from a 10g R1 cluster to 10g R2, you decide to multiplex your voting disk. Which are the two ways in which you can accomplish this task? (Choose two.)

A) You must add additional voting disks offline.
B) You may use the command:
crsctl add ess votedisk <new voting disk path>
C) You should not use symbolic links.
D) You can add additional voting disks online.
E) You may use the VIPCA utility to add new voting disks.

5. View the Exhibit.
You are required to support your Oracle RAC configuration using ASM and RAID technology. You plan to discuss the storage configuration with the storage technology team. They have proposed a configuration as shown in the exhibit with a separate set of LUNs for the data disk group and the flash recovery area disk group and a 500 KB stripe size in line with other non-Oracle LUNs. The Data disk group has four250G LUNs and the FRA disk group has four500G LUNS, both of which are mirrored.

A) Index Range Scans would cause I/O to many different physical disks.
B) I/O to the flash recovery area disk group for backups may cause performance issues when full table scans are occurring during batch workloads.
C) The LUNs are not aligned with ASM Allocation Units, which may lead to I/O bottlenecks.
D) Retention policies that require backups to be kept for long time periods may cause wasted space due to large allocation units.

Solutions: