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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

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

2. James works as a senior DBA for a finance company. He plans to implement a test RAC
environment. As per his plan, a three-node RAC would be implemented on a Windows platform,
with the following points related to the storage of files:
1) A single Oracle home would be shared by all the nodes.
2) The data files will extend automatically because the autoextend feature will be enabled.
3) The Oracle binaries and all the database files would be stored in a single file system.
4) The hardware RAID is used to support high availability.
These are the some of the storage options available for RAC implementation:
Option 1:Use OCFS with ASM Option 2:Use ASM and not OCFS Option 3:Use OCFS and not ASM Option 4:Use neither OCFS, nor ASM
Which storage option would you suggest for this plan?

A) Option 2
B) Option 3
C) either Option 2 or Option 4
D) Option 4
E) Option 1
F) either Option 1 or Option 2

3. According to the Maximum Availability Architecture, which case is best?

A) Run two identical sites with a primary RAC database on the first site, and only a RAC logical standby database on the second site.
B) Run two identical sites with a primary RAC database on the first site, and only a RAC physical standby database on the second site.
C) Run two identical sites with a primary RAC database on the first site, and non-RAC physical and logical standby databases on the second site.
D) Run two identical sites with a primary RAC database on the first site, and RAC physical and logical standby databases on the second site.

4. After adding two new high-performance nodes to your existing eight-node Oracle Database cluster, you decide to remove the two oldest nodes from your cluster. You start by removing the instances from the nodes you are about to remove by using the Database Configuration Assistant (DBCA). During the execution, a problem arises and the DBCA terminates with a fatal exception. Before you contact Oracle Support, you want to create a Java-based tool trace file so that Oracle Support can assist you in resolving this issue as quickly as possible. How would you create this trace file?

A) Request extra information by adding the -v (verbose) command-line flag at the DBCA command line.
B) Set the DEBUG environment variable to TRUE before you execute the DBCA command.
C) Set the SRVM_TRACE environment variable to TRUE before you execute the DBCA command.
D) There is no need to do anything special because Java-based tool tracing is enabling by default for DBCA.
E) Set the SRVM_DEBUG environment variable to TRUE before you execute the DBCA command.
F) Request extra information by adding the -d (debug) command line flag at the DBCA command line.

5. View the Exhibit and examine an installation step of Oracle Enterprise Manager Grid Control 10gR2 to manage your RAC installation. You entered the host name but you are not sure about the port number. Thefollowing is the list of port numbers from the host ed-otraclin17b.us.oracle.com:

A) 4889
B) 1521
C) 3938
D) 5561
E) 1158

Solutions: