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Oracle Database 10g R2: Administering RAC Sample Questions:

1. After migrating from a 10g R1 cluster to 10g R2, you decide to multiplex your voting disk. Which are the two ways in which you can accomplish this task? (Choose two.)

A) You may use the VIPCA utility to add new voting disks.
B) You may use the command:
crsctl add ess votedisk <new voting disk path>
C) You can add additional voting disks online.
D) You should not use symbolic links.
E) You must add additional voting disks offline.

2. Read the following statements about a file system:
1) It is compatible with Oracle 9i and Oracle 10g.
2) It is one of the solutions for managing Oracle binaries in a RAC environment.
3) It relies on storage hardware or host-based RAID functionality to support high availability.
4) It is a shared storage file system designed in such a way that you can avoid setting up of raw
partitions to store certain files.
Which file system corresponds to these features?

A) NFS
B) ext2
C) OCFS2
D) ASM
E) NTFS

3. You are working as a DBA in a RAC environment that is available for testing. The RAC environment has all the database files stored in the OCFS file system. You plan to install ASM and move all the database files to ASM to achieve better performance. During the installation, you selected redundancy level as normal for the disk group being added. What is the reason for selecting this redundancy level?

A) You do not want to have any mirroring in the disk group.
B) You want to use hardware mirroring.
C) You have two failure groups defined, so you want to use two-way mirroring.
D) You have three failure groups defined, so you want to use three-way mirroring.

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 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
B) 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
C) 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
D) Asymmetric RAC and Dataguard configuration with a mixture of RAC and single instances using ASM at all sites with the same service preferences

5. Which three statements about quiescing a RAC database are true? (Choose three.)

A) It is possible to take a cold backup while the database is in a quiesced state.
B) The ALTER SYSTEM QUIESCE RESTRICTED and ALTER SYSTEM UNQUIESCE statements affect all instances in a RAC environment.
C) The database cannot be opened from another instance until the ALTER SYSTEM QUIESCE?statement finishes execution.
D) Use the ALTER SYSTEM QUIESCE RESTRICTED statement from a single instance.

Solutions: