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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) Local File System with each instance writing to a local location provided that the path names are identical on all nodes.
B) 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.
C) ASM diskgroup +FR_DG as specified for the Flash Recovery Area provided that the ASM diskgroup is mounted on all ASM instances.
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) Cluster File System with each instance writing to a shared location.
F) ASM diskgroup +DB_DG as specified for the Database Area provided that the ASM diskgroup is mounted on all ASM instances.

2. View the Exhibit.
You are asked to help a colleague to logically remove node NLEDUC2 from a RAC cluster
installation.
On observing the colleague's terminal, you notice the output as seen in the exhibit. Based on this,
which five additional steps would you recommend? Do not be concerned with the correct
sequence for the steps.
(Choose five.)

A) Check that the node has been removed from the database and ASM inventories.
B) Stop and restart the clusterware on NLEDUC1.
C) Check that the ONS configuration has been updated on the remaining node.
D) Check that the software has been removed from the database and ASM homes on NLEDUC2.
E) Check that the database and ASM instances are all terminated on NLEDUC2.
F) Remove the node from the clusterware.
G) Remove the listener from NLEDUC2.
H) Stop and restart the nodeapps on NLEDUC1.

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

4. After a failed cluster database creation process, you realize that the contents of the OCR does not
match the current cluster configuration anymore. Before you started the database creation
process, you created a logical backup of the OCR, and now you want to use this logical backup to
bring the OCR contents in sync with the current cluster configuration.
Which commands would you use and in which order to accomplish this task?
1 OCRCONFIG -REPAIR (on the local cluster node only)
2 OCRCONFIG -REPAIR (on all cluster nodes)
3 OCRCONFIG -RESTORE <path name>
4 OCRCONFIG -IMPORT <path name>
5 CRSCTL STOP CRS (on the local cluster node only)
6 CRSCTL STOP CRS (on all cluster nodes)
7 OCRCONFIG -SHOWBACKUP
8 CRSCTL START CRS (on the local cluster node only)
9 CRSCTL START CRS (on all cluster nodes)

A) 7,6,3,9.
B) 5,4,8.
C) 7,6,4,9.
D) 6,3,9.
E) 7,6,3,2,9.
F) 5,3,8.
G) 6,4,9.

5. Oracle Cluster Registry (OCR) can be recovered on a UNIX platform using which two commands? (Choose two.)

A) ocrconfig -import /u01/logical_ocr/yesterday.ocr where yesterday.ocr is an automatically generated OCR backup
B) ocrconfig -restore /app/oracle/product/10.1.0/crs_1/cdata/dbclust01/day. ocr where day. ocr is an automatically generated OCR backup
C) cp /app/oracle/product/10.1.0/crs_1/cdata/dbclust01/day. ocr/ocfs/OCR/crs. dbf where /ocfs/OCR/crs. dbf is the cluster registry file
D) ocrconfig -import /u01/logical_ocr/yesterday.ocr_exp where yesterday. ocr_exp is a logical backup created using the ocrconfig -export command

Solutions: