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Oracle Database 10g R2: Administering RAC Sample Questions:

1. You are migrating a single-instance Oracle database to RAC. The data files and Flash Recovery Area would be migrated to ASM using the RMAN commands BACKUP AS COPY DATABASE and BACKUP RECOVERY AREA, and stored in an ASM diskgroups called +DB_DG and +FR_DG. The DB_CREATE_FILE_DEST parameter would be set to +DB_DG and the DB_RECOVERY_FILE_DEST parameter would be set to +FR_DG.
What are the three best options for the location of your archivelogs so that they may be used properly for recovery without DBA intervention? (Choose three.)

A) ASM diskgroup +DB_DG as specified for the Database Area provided that the ASM diskgroup is mounted on all ASM instances.
B) ASM diskgroup +FR_DG as specified for the Flash Recovery Area provided that the ASM diskgroup is mounted on all ASM instances.
C) Local File System with each instance writing to a local location provided that NFS read mount points are created to all other nodes with instances of the database.
D) Cluster File System with each instance writing to a separate location as long as they are in directories under the same mount point.
E) Local File System with each instance writing to a local location provided that the path names are identical on all nodes.
F) Cluster File System with each instance writing to a shared location.

2. 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 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.
C) You create a logical export from the OCR by using the OCRCONFIG command and analyze the export file for errors.
D) There is no easy way to check your OCR for corruptions.
E) You can check whether the OCR is not corrupted by using the OCRCHECK command.

3. The infrastructure team at your company requires your advice on maximizing availability using Maximum Availability Architecture and any other features that will help reduce planned downtime both for database instances and for the availability of database objects which applications depend on. You are already running a four node RAC cluster to protect against instance and node failures. Which four would you recommend if they are not already implemented? (Choose four.)

A) use of segment shrinking to reorganize space in tables and indexes
B) use of online index rebuild
C) use of the DBMS_REDEFINITION package
D) use of freelists to manage space in table and index segments
E) use of ASM
F) a physical standby database for rolling upgrades

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

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

5. 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) NTFS
B) ext2
C) OCFS2
D) NFS
E) ASM

Solutions: