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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

Question 1

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

Question 2

In which directory should you put your callout scripts on your RAC nodes?

A. $ORACLE_HOME/opmn/conf/
B. $ORA_CRS_HOME/racg/usrco/
C. $ORA_CRS_HOME/opmn/conf/
D. JORACLE_HOME/racg/usrco/

Question 3

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.

Question 4

Which statement regarding Clusterware is false? (Choose the false statement.)

A. Oracle Clusterware is installed using the Oracle Universal Installer (OUI).
B. The installation of Oracle Clusterware is mandatory even if you have installed vendor-specific clusterware.
C. The Oracle Database 10g Clusterware stack is compatible with Oracle 9i Group Services (GSD) processes.
D. The ORA_CRS_HOME directory must not be the same as the ORACLEJHOME directory.

Question 5

Which three statements regarding backup of the voting disk are true? (Choose three.)

A. A backup of the voting disk should be taken whenever an RMAN catalog reset is done.
B. On UNIX platforms, the voting disk can be backed up with the dd command.
C. A backup of the voting disk should be taken whenever a new node is added to the cluster.
D. Whenever a voting disk backup is made, the Clusterware software should be stopped on all nodes in the cluster.
E. A backup of the voting disk should be taken whenever an existing node is removed from the cluster.

Solutions: