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Oracle Database 10g R2: Administering RAC Sample Questions:

1. According to the Maximum Availability Architecture, which case is best?

A) Run two identical sites with a primary RAC database on the first site, and only a RAC logical standby database on the second site.
B) Run two identical sites with a primary RAC database on the first site, and RAC physical and logical standby databases on the second site.
C) Run two identical sites with a primary RAC database on the first site, and non-RAC physical and logical standby databases on the second site.
D) Run two identical sites with a primary RAC database on the first site, and only a RAC physical standby database on the second site.

2. Your company requires that certain database systems be made continuously available because there are revenue-earning applications using Oracle databases. You already use RAC; it is a requirement for the applications to have continuous read and write access to all schema objects in the database during routine DBA maintenance activities. Which three technologies would you recommend for minimizing planned downtime for the application caused by unavailability of data due to those activities? (Choose three.)

A) Online Table Redefinition
B) Fast Start Fault Recovery
C) Rolling Release Upgrades
D) Online Index Rebuild
E) Bigfile Tablespaces
F) Hardware-Assisted Resilient Data

3. Which two statements regarding the installation of the Oracle 10g Database software are true? (Choose two.)

A) The Oracle Universal Installer (OUI) can detect the cluster hardware and allow the user to install the software on the local node or choose all nodes to install the software.
B) The OUI does not support a RAC installation if the Standard Edition is chosen from the Installation Type page.
C) If the OUI does not display all of the available nodes in your cluster, check the viability of your cluster and its associated nodes by executing the chkcluster command from $ORA_CRS_HOME/bin directory.
D) The directory path for the Oracle 10g Database software must not be the same as the Oracle 10g Clusterware home directory.

4. You are considering issues involving backup and recovery of the voting disk. Select four correct statements. (Choose four.)

A) Backup can be performed online.
B) To back up the voting disk, use the command ocrconfig -export.
C) If you lose your voting disk and do not have a backup, you must reinstall Oracle Clusterware. ]
D) You can determine the voting disks currently used by CSS with the command crsctl query ess votedisk.
E) Use symbolic links to simplify recovery of the voting disk.

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

Solutions: