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Oracle Database 10g R2: Administering RAC Sample Questions:

1. View the Exhibit, which displays the cluster database performance page after the same workload has been executed three times on your cluster without varying any non-Oracle workloads on the cluster. What are the two ways by which you can tell that the corresponding application was better tuned during the second and third execution? (Choose two.)

A) There is less paging each time
B) The database throughout graphic is below the red dashed line during the last execution.
C) The run queue length is going down each time.
D) The number of transactions per second is getting higher each time.
E) It takes less time to execute the workload each time.

2. The following are some of the tasks that are performed during a RAC implementation: 1) Setting the Oracle database-related environment variables 2) Creating a password file 3) Installing Management Service and Management Agent 4) Creating and editing the Raw Device Mapping file 5) Creating an ASM instance 6) Creating the Oracle Cluster Registry (OCR) file 7) Implementing the Transparent Application Failover (TAF) policy 8) Creating database services Identify the tasks that can be performed using the DBCA, or performed by the DBCA, during database creation in the RAC implementation.

A) All the tasks
B) 1,3,4,6
C) 1,2,3,5,6,8
D) 2,3,5,7,8
E) 2,3,4,6,7

3. Your network administrator wants to know why you need extra IP addresses for your Oracle Real Applications Cluster now that you are upgrading from OracleSi to Oracle 10g. Which four statements would you use to explain to your network administrator the reason for requiring extra IP addresses? (Choose four.)

A) A VIP would notify its client when a failure occurs.
B) A VIP would always accept a connection from a client.
C) The VIPs are used to prevent connection request timeouts during client connection attempts.
D) Database clients should connect to a RAC database using VIPs for the best High Availability solution.
E) The VIPs are used to circumvent network timeouts on the Cluster Interconnect.
F) The VIP addresses must be on the same subnet as the public host network addresses.
G) The VIPs should be registered in the DNS.
H) The VIPs should not be registered in the DNS.

4. James works as a senior DBA for a finance company. He plans to implement a test RAC
environment. As per his plan, a three-node RAC would be implemented on a Windows platform,
with the following points related to the storage of files:
1) A single Oracle home would be shared by all the nodes.
2) The data files will extend automatically because the autoextend feature will be enabled.
3) The Oracle binaries and all the database files would be stored in a single file system.
4) The hardware RAID is used to support high availability.
These are the some of the storage options available for RAC implementation:
Option 1:Use OCFS with ASM Option 2:Use ASM and not OCFS Option 3:Use OCFS and not ASM Option 4:Use neither OCFS, nor ASM
Which storage option would you suggest for this plan?

A) Option 3
B) Option 1
C) Option 2
D) Option 4
E) either Option 1 or Option 2
F) either Option 2 or Option 4

5. You are implementing a three-node RAC setup in your company. You have already performed these tasks:
1) Hardware and OS configuration 2) Cluster file system installation 3) Clusterware installation You executed the following command in one of the nodes: cluvfy stage -pre dbinst -n all
What is the reason for executing this command?

A) to check if the ORACLEJHOME environmental variable is set to a correct value or not before the database installation
B) to check whether the dbinst directory is available on all the nodes
C) to check for node connectivity and Clusterware integrity
D) to check for the existence of Oracle database software installation files in the /stage directory on all the nodes

Solutions: