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Oracle Database 10g R2: Administering RAC Sample Questions:

1. You are the administrator of a Linux-based Oracle cluster. To meet your company's disaster recovery requirements, you have to make backups of the OCR to a tape device. What are your options? (Choose all that apply.)

A) Use your favorite tape backup command to back up the OCR from disk to tape.
B) Use the OCRCONFIG command to have CRSD write the OCR backup to tape for you.
C) Use your favorite tape backup command to back up the physical OCR backups from disk to tape.
D) Use RMAN to back up the OCR from disk to tape.
E) Use the Linux DD command to write the OCR directly to tape.

2. View the Exhibit, which displays a portion of an ADDM report from a RAC database. Which three statements are true? (Choose three.)

A) A LOCK TABLE statement is causing excessive inter-instance messaging.
B) The SQL statement with the ID dqsu2hwys8rcf was executed 40000 times
C) The Findings Path section indicates that the Cluster wait class is consuming a significant proportion of the database time.
D) The ADDM report output reveals a "hot block" condition.

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

4. Which two statements are true regarding high availability in a RAC environment? (Choose two.)

A) You can have multiple RAC instances apply standby redo log files to the standby database.
B) Each primary RAC instance must send its redo stream to the same standby RAC instance.
C) It is the Data Guard Broker's responsibility to communicate with CRS during a switchover operation to stop and start services according to each Data Guard site role.
D) When you have a serious crash of your primary site, it is your responsibility to initiate the failover to the standby site in case you are not using the Fast-Start Failover feature.
E) When you have a serious crash of your primary site, Data Guard Broker automatically initiates the failover to the standby site.

5. Which three statements about deleting instances from a RAC database on a UNIX platform are true? (Choose three.)

A) To delete an instance, start the DBCA on the node that hosts the instance that you want to delete.
B) The DBCA can be used to delete an instance from a RAC database.
C) To delete an instance, start the DBCA on a node other than the node that hosts the instance that you want to delete.
D) During a delete operation, the DBCA removes the instance and the instance Oracle Net configurationDuring a delete operation, the DBCA removes the instance and the instance? Oracle Net configuration.

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