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Oracle Database 10g R2: Administering RAC Sample Questions:

1. Which two statements are true in any RAC environment? (Choose two.)

A) A redo thread must contain at least two groups of redo log files before it can be enabled.
B) A RAC database must contain at most one redo thread for each instance.
C) After your redo threads are defined, you cannot add new ones.
D) A RAC database must contain at least two threads of redo log files per instance.
E) A publicly enabled thread can be used by any instance of your RAC database.

2. You execute the following command from the first node of your cluster: crsctl add ess votedisk /dev/raw/raw9
However, you get an error message indicating that Oracle Clusterware stack is not started. Which command would you execute?

A) crsctl start crs Crsctl add ess votedisk /dev/raw/raw9 -force
B) crsctl enable crs Crsctl add ess votedisk /dev/raw/raw9 -force
C) crsctl enable crs Crsctl add ess votedisk /dev/raw/raw9
D) crsctl start crs Crsctl add ess votedisk /dev/raw/raw9
E) crsctl add ess votedisk /dev/raw/raw9 -force

3. When an ASM instance initializes, ASM discovers and examines the contents of all the disks that are in the paths designated in the ASM_DISKSTRING initialization parameter. Under which four other circumstances does disk discovery take place? (Choose four.)

A) when you run ALTER DISKGROUP...ADD DISK
B) when you query V$ASM_DISK
C) when you query VJASMjDPERATION
D) when you query V$ASM_DISKGROUP
E) when you run ALTER DISKGROUP...RESIZE DISK

4. Which parameter file should you use to configure the Oracle notification server on your RAC nodes?

A) $ORA_CRS_HOME/racg/usrco/ons. config
B) $ORACLE_HOME/opmn/conf/ons. config
C) $ORACLE_HOME/racg/usrco/ons.config
D) $ORA_CRS_HOME/opmn/conf/ons. config

5. After a power failure, you noticed that one of your cluster database instances did not start automatically, whereas all other instances came up successfully. What would you do to determine the precise cause for the instance startup failure? (Choose three.)

A) Check the resource state by using the CRS_STAT command.
B) Check for OCR corruptions by using the OCRCHECK command.
C) Enable extra debugging in the Oracle Clusterware software by using the CRSCTL command.
D) Check if the Oracle Clusterware is functional by using the CRSCTL command.
E) Check the alert.log file that belongs to the instance that did not start.
F) Check the alert.log file that belongs to the Oracle Clusterware software.
G) Reboot the node where the failing instance resides to check if the problem is persistent.

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