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Oracle 1Z0-048 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Oracle Database 10g R2: Administering RAC |
| Exam Number: | 1Z0-048 |
| Available Languages: | English |
| Exam Duration: | 120 minutes |
| Exam Price: | $245 USD |
| Related Certifications: | Oracle Database 10g Administrator Certified Associate (OCA) Oracle Database 10g Administrator Certified Professional (OCP) |
| Exam Format: | Multiple Response, Multiple Choice |
| Recommended Training: | Oracle University Training |
| Exam Registration: | Oracle Certification Portal |
| Sample Questions: | Oracle 1Z0-048 Sample Questions |
| Exam Way: | Proctored exam (online or testing center depending on Oracle partner delivery at the time) |
| Pre Condition: | Recommended: Oracle Database 10g Administrator Certified Associate (OCA) or equivalent DBA experience |
| Official Syllabus URL: | https://education.oracle.com |
Oracle 1Z0-048 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Installation and Configuration | - Installing RAC database software - Preparing RAC environment - Installing Oracle Clusterware |
| Topic 2: High Availability Concepts | - Failover mechanisms - RAC recovery scenarios |
| Topic 3: Oracle RAC Architecture | - Cluster fundamentals and components - Shared storage concepts - Cache Fusion and interconnect communication |
| Topic 4: Cluster and Database Administration | - Managing RAC instances - Backup and recovery in RAC - Services configuration and management |
| Topic 5: Performance and Tuning | - Monitoring RAC performance - Load balancing and failover - Troubleshooting performance issues |
Oracle Database 10g R2: Administering RAC Sample Questions:
Question 1
Which statement regarding Clusterware is false? (Choose the false statement.)
A. The installation of Oracle Clusterware is mandatory even if you have installed vendor-specific clusterware.
B. Oracle Clusterware is installed using the Oracle Universal Installer (OUI).
C. The Oracle Database 10g Clusterware stack is compatible with Oracle 9i Group Services (GSD) processes.
D. The ORA_CRS_HOME directory must not be the same as the ORACLEJHOME directory.
Question 2
Several steps must be followed to successfully add a new node to your cluster database. Assuming that a UNIX platform is used, which of the three steps below are correct? (Choose three.)
A. Add the RAC software to the new node using addnode.sh from ORA_CRS_HOM
B. Configure the OS and hardware for the new node.
C. Add the node to the cluster using the addnode.sh script run from ORA_CRS_HOME.
D. Reconfigure listeners for the new node with netca.
E. Add instances using OUI.
Question 3
Which two statements are true in any RAC environment? (Choose two.)
A. A RAC database must contain at least two threads of redo log files per instance.
B. A redo thread must contain at least two groups of redo log files before it can be enabled.
C. A RAC database must contain at most one redo thread for each instance.
D. After your redo threads are defined, you cannot add new ones.
E. A publicly enabled thread can be used by any instance of your RAC database.
Question 4
You are asked by the DBA team leader to consolidate three different Oracle databases, which supported three separate workloads, into one large three-instance RAC database on a three-node cluster. You also need to create a separate service to represent each workload type and support client-side load balancing. The CRM service has two preferred instances, the HR service has two, and the ORDERS service
has only one. Any instance may be used as an vailable instance for any service that is not
specified as a preferred service for that same instance. You decide to create three separate
entries in TNSNAMES.ORA.
Choose three options describing the number of entries you would have in each address list.
(Choose three.)
A. two entries for the address list for the HR service for the listeners on the nodes containing the preferred instances for HR
B. one entry for the address list for the ORDERS service for the listeners on the nodes containing the preferred instance for ORDERS
C. two entries for the address list for the CRM service pointing to the listeners on the nodes containing the preferred instances for CRM
D. three entries in the address list for the HR service for the listeners on all three nodes
E. three entries in the address list for the ORDERS service pointing to the listeners on all three nodes
F. three entries in the address list for the CRM service for the listeners on all three nodes
Question 5
Read the following statements about the ASM and OCFS file systems:
1) t is compatible with Oracle 9i and Oracle 10g.
2) t is one of the solutions for managing Oracle binaries in a RAC environment.
3) t relies on storage hardware or host-based RAID functionality to support high availability.
4) t is a shared storage file system designed to eliminate the need for raw partitions to store
certain files.
5) t is has integrated volume management with superior extent-based striping and mirroring.
6) t is a cluster file system with a volume manager built into the Oracle 10g kernel to manage
Oracle database files.
Identify the correct grouping where Group A represents true statements about ASM and Group B
represents true statements about OCFS.
A. 1 2,5,6
B. Group
C. Group
D. 1 5,6
E. 2 3,4 Group
F. 3 4 Group
G. Group A: 5 6 Group B: 1 2,3,4
H. 1 3,4 Group B: 3 4,5
I. Group
Solutions:
| Question 1 Answer: C | Question 2 Answer: B,C,D | Question 3 Answer: B,E | Question 4 Answer: D,E,F | Question 5 Answer: D,G |
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