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Oracle Database 10g R2: Administering RAC Sample Questions:

1. Which three statements are correct regarding ASM instances in a RAC environment? (Choose three.)

A) ASM instances can use different values for ASM_POWER_LIMIT.
B) ASM instances must all have the same value for ASM_DISKSTRING.
C) ASM instances recognize their disks by looking at their headers.
D) ASM instances can mount different sets of disk groups.
E) ASM instances must all have the same value for ASM DISKGROUPS.

2. Your company requires that certain database systems be made continuously available because there are revenue-earning applications using Oracle databases. You already use RAC; it is a requirement for the applications to have continuous read and write access to all schema objects in the database during routine DBA maintenance activities. Which three technologies would you recommend for minimizing planned downtime for the application caused by unavailability of data due to those activities? (Choose three.)

A) Hardware-Assisted Resilient Data
B) Fast Start Fault Recovery
C) Online Index Rebuild
D) Bigfile Tablespaces
E) Online Table Redefinition
F) Rolling Release Upgrades

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

4. Your company has a combination of high availability and scalability requirements that need to be addressed, and RAC has been discussed as a solution. There are a mix of "off-the-shelf software products and homegrown applications currently in use in your environment that run on single-instance Oracle databases. You have been asked by the IT director to provide an impact analysis report to help assess the impact on applications when migrating to RAC. Which three are among the areas that should be examined for performance impact and application functionality impact or for both? (Choose three.)

A) client/server type applications that use application local context variables
B) applications that truncate tables in a data warehouse process
C) applications that use SQL profiles created by the ATO optimizer in the SQL Tuning Advisor
D) three-tier applications that use application global context variables
E) applications that access small tables using the same index occasionally
F) applications that use large parallel full table scans

5. 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) SOURCE_ROUTE
B) LOAD_BALANCE
C) TYPE OF SERVICE
D) FAILOVER

Solutions: