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

2. Which optional parameter of the DESCRIPTION clause of a TNS entry can you use to make sure that another protocol address is tried if the first one fails?

A) TYPE OF SERVICE
B) FAILOVER
C) LOAD_BALANCE
D) SOURCE_ROUTE

3. Richard is a senior DBA and has prepared a plan for RAC implementation in his company. Given below are some of the tasks that he would perform as part of the plan: 1) Creating the Raw Devices Mapping file 2) Creating database services 3) Binding the partitions to raw devices 4) Creating the Voting Disk file 5) Creating an initialization parameter file 6) Creating the Oracle Cluster Registry (OCR) file 7) Creating the tnsnames.ora file 8) Creating the database control file
During the creation of the RAC database, Richard can use the Database Configuration Assistant (DBCA) to perform some of these steps but not all of them. Which steps should be completed before Richard starts creating the database by using DBCA?

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

4. You are asked to design a Maximum Availability Solution for a RAC configuration that provides for continuous availability for the Oracle database and which can survive instance failures, node failures, data failures, and site failures. The RAC configuration has a four-node cluster with five different services configured. Performance must be maintained for any failure situation for all the services, and all data must be preserved. All the servers in the configuration will have the same hardware. Which configuration would you recommend?

A) Asymmetric RAC and Dataguard configuration with a mixture of RAC and single instances using ASM at all sites with the same service preferences
B) Asymmetric RAC and a Logical Standby Database in a Dataguard configuration with RAC and ASM at all sites with the same number of instances but different service preferences
C) Asymmetric RAC and a Physical Standby Database in a Dataguard configuration with RAC and ASM at all sites with the same number of instances but different service preferences
D) Symmetric RAC and a Physical Standby Database in a Dataguard configuration with RAC and ASM at all sites with the same number of instances and the same service preferences

5. Read the following statements about the ASM and OCFS file systems:
1) t is compatible with Oracle 9i and Oracle 10g.
2) t is one of the solutions for managing Oracle binaries in a RAC environment.
3) t relies on storage hardware or host-based RAID functionality to support high availability.
4) t is a shared storage file system designed to eliminate the need for raw partitions to store
certain files.
5) t is has integrated volume management with superior extent-based striping and mirroring.
6) t is a cluster file system with a volume manager built into the Oracle 10g kernel to manage
Oracle database files.
Identify the correct grouping where Group A represents true statements about ASM and Group B
represents true statements about OCFS.

A) Group A: 5 6 Group B: 1 2,3,4
B) Group
C) Group
D) Group
E) 2 3,4 Group
F) 1 2,5,6
G) 1 5,6
H) 3 4 Group
I) 1 3,4 Group B: 3 4,5

Solutions: