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Oracle Database 10g R2: Administering RAC Sample Questions:

1. Your four-node RAC cluster is no longer coping with workloads for one of its databases at peak periods and you decide to add another node to the cluster. The current configuration has two RAC databases, each with four instances with only the second database using ASM as a clustered database file system. ASM is installed in a separate home. Which five steps must you take to add all the software components and processes to the new node before you run DBCAto add database and ASM instances on the new cluster nodes. Do not be concerned with the correct sequence for the steps. (Choose five.)

A) Run addnode.sh in the Clusterware home/oui/bin directory from each of the existing nodes once to define the new node to each existing node.
B) Run addNode.sh in the ASM home/oui/bin directory from one of the existing nodes.
C) Run racgons add_config from one of the existing nodes to add the ONS metadata to the OCR.
D) Run addnode.sh in the Clusterware home/oui/bin directory from one of the existing nodes to define the new node to all existing nodes.
E) Run cluvfy stage -pre crsinst <list of all nodes> from one of the existing nodes to verify the cluster configuration.
F) Run netca from the new node to add a listener to the new node.
G) Run addNode.sh in the RDBMS home/oui/bin directory from one of the existing nodes.

2. Which three storage types are suitable as a flash recovery area for an Oracle 10g RAC database? (Choose three.)

A) Local file system
B) Raw volume
C) Cluster file system
D) ASM disk group
E) Shared NFS directory

3. You want check whether the group services node application is running on all the nodes in your cluster before you create a cluster database. Which utility can you use to make sure the node application is running on all nodes in the cluster?

A) addnode.sh
B) Isnrctl
C) onsctl
D) crsctl
E) crs_stat

4. View the Exhibit.

A Symmetric RAC and Physical Standby Database configuration is set up for a high availability requirement matching the one in the exhibit with the primary using 'maximum availability' protection mode.
Which two benefits are there for each primary instance in sending its redo to a corresponding standby instance, rather than having all the primary instances sending redo to the same standby apply instance? (Choose two.)

A) Multiple standby instances allow the redo to be written to standby redo logs more quickly than just using a single receiving instance by reducing commit time on the primary instances.
B) The services on the primary would be symmetric allowing performance on each instance to be equal in the event of a switchover or failover to the standby database.
C) Multiple standby instances allow the redo to be applied more quickly by the standby apply instance after the redo has already arrived from the primary.
D) If the redo receive load is spread across multiple receiving instances then the primary redo transport is less likely to become a bottleneck.
E) The workloads of the archive processes on the standby instances would be balanced, thereby allowing load balancing across the cluster where the standby resides.

5. Your storage administrator informs you about some disk corruption issues in the disk subsystem where your Oracle Cluster Registry (OCR) is located. Your storage administrator has resolved these corruption issues by applying a patch to the storage subsystem, but to be sure that the OCR is not affected by this problem the administrator wants you to check the integrity of the OCR. How would you do this?

A) You create a physical backup of the OCR by using the OCRCONFIG command, and if this succeeds without errors you know that the OCR is not corrupted.
B) You create a logical export from the OCR by using the OCRCONFIG command and analyze the export file for errors.
C) You dump the OCR contents into a text file by using the OCRDUMP command, and if that succeeds without errors you know that your OCR is not corrupted.
D) You can check whether the OCR is not corrupted by using the OCRCHECK command.
E) There is no easy way to check your OCR for corruptions.

Solutions: