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Oracle Database 10g R2: Administering RAC Sample Questions:

1. After a failed cluster database creation process, you realize that the contents of the OCR does not
match the current cluster configuration anymore. Before you started the database creation
process, you created a logical backup of the OCR, and now you want to use this logical backup to
bring the OCR contents in sync with the current cluster configuration.
Which commands would you use and in which order to accomplish this task?
1 OCRCONFIG -REPAIR (on the local cluster node only)
2 OCRCONFIG -REPAIR (on all cluster nodes)
3 OCRCONFIG -RESTORE <path name>
4 OCRCONFIG -IMPORT <path name>
5 CRSCTL STOP CRS (on the local cluster node only)
6 CRSCTL STOP CRS (on all cluster nodes)
7 OCRCONFIG -SHOWBACKUP
8 CRSCTL START CRS (on the local cluster node only)
9 CRSCTL START CRS (on all cluster nodes)

A) 7,6,3,9.
B) 6,4,9.
C) 6,3,9.
D) 7,6,3,2,9.
E) 5,3,8.
F) 5,4,8.
G) 7,6,4,9.

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

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

3. View the Exhibit and examine an installation step of Oracle Enterprise Manager Grid Control 10gR2 to manage your RAC installation. You entered the host name but you are not sure about the port number. Thefollowing is the list of port numbers from the host ed-otraclin17b.us.oracle.com:

A) 5561
B) 1521
C) 4889
D) 3938
E) 1158

4. 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) The LUNs are not aligned with ASM Allocation Units, which may lead to I/O bottlenecks.
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) Retention policies that require backups to be kept for long time periods may cause wasted space due to large allocation units.
D) Index Range Scans would cause I/O to many different physical disks.

5. You defined the HR service using the following command:
srvctl add service -d RACDB -s HR -r RAC02.RAC03 -a RAC01
After a while, you realize that there is a workload peak on the HR service, and you decide to temporarily start HR on the RAC04 instance.
Which command or series of commands would you use to start HR on RAC04?

A) srvctl remove service -d RACDB -s HR Srvctl add service -d RACDB -s Hr-r RAC02.RAC03.RAC04 -a RAC01 srvctl start service -d RACDB -s HR
B) srvctl modify service -d RACDB -s HR -i RAC02.RAC03.RAC04 -a RAC01
C) srvctl start service -d RACDB -s HR -i RAC04
D) srvctl remove service -d RACDB -s HR Srvctl add service -d RACDB -s Hr-r RAC02.RAC03.RAC04 -a RAC01
E) srvctl modify service -d RACDB -s HR -i RAC02.RAC03.RAC04 -a RAC01 srvctl stop service -d RACDB -s HR srvctl start service -d RACDB -s HR

Solutions: