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Oracle Database 10g R2: Administering RAC Sample Questions:

1. Which two statements regarding Oracle Clusterware are correct? (Choose two.)

A) The Oracle Database 10g version of the srvConfig.loc file is the ocr.loc file.
B) The installation of Oracle Clusterware is not necessary if you have already installed vendor-specific clusterware.
C) The Oracle9i srvConfig.loc file still exists for backward compatibility in Oracle Database 10g.
D) The Oracle Database 10g CRS stack is compatible with Oracle 9i Group Services (GSD) processes.

2. You have a four-node cluster with instances RDBD1, RDBD2, RDBD3, and RDBD4. While evaluating statspack reports, you find nq: TX- index contention on page one under the category op 5 Timed Events.
Further study finds an unusually high number of c buffer busy waits in the Wait Events section.
Checking the Instance Activity Stats section, you see an unusually high value for eaf Node Splits.
Using v$segment_statistics, you identify that the top segment with c buffer busy waits is the index products_pk, which obtains the primary key from a sequence. You wish to present alternative solutions to the team to help reduce contention.
Which three actions would you recommend to reduce the overheads? (Choose three.)

A) Re-create the index as a global hash partitioned index.
B) Set fast_start_mttr_target to a higher value.
C) Increase the sequence cache size if retaining the sequence.
D) Encourage shorter transactions.
E) Re-create the table using a natural key instead of a surrogate key.
F) Set _lm_msg_batch_size to a higher value.

3. Because of the increasing load on your Oracle Database 10g Release 2 cluster, your company has decided to add one extra node to your existing four-node cluster. To prevent errors during this process, you want to make use of the Cluster Verification Utility (CLUVFY) so that you can check if you meet all requirements before you execute each step in this node-adding process. From where can you run CLUVFY?

A) only after downloading it from the Oracle Technology Network (OTN) Web site
B) from the Oracle Clusterware distribution media, any ORACLEJHOME on the node from which you installed the first four nodes, and from the location where you downloaded it from in the Oracle Technology Network (OTN) Web site
C) from the Oracle Clusterware distribution media, any available RAC and/or CRS ORACLEJHOME on your cluster, and from the location where you downloaded it from in the Oracle Technology Network (OTN) Web site
D) only from a non-Oracle Clusterware ORACLEJHOME
E) only from the Oracle Clusterware ORACLEJHOME
F) from both the Oracle Clusterware distribution media and the Oracle Clusterware ORACLEJHOME
G) only from the Oracle Clusterware distribution media

4. Which two statements about parallel recovery in a RAC environment are true? (Choose two.)

A) The RECOVERY_PARALLELISM initialization parameter specifies the number of redo application server processes participating in instance or media recovery.
B) The RECOVER Y_PARALLELISM initialization parameter causes serial recovery if the value is greater than two.
C) Parallel recovery is most effective at reducing recovery time while concurrently recovering several data files on several disks.
D) The use of the RECOVER Y_PARALLELISM initialization parameter is the only way to initiate parallel recovery.

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

Solutions: