Oracle 1Z0-048 Exam : Oracle Database 10g R2: Administering RAC

  • Exam Code: 1Z0-048
  • Exam Name: Oracle Database 10g R2: Administering RAC
  • Updated: Jul 31, 2026
  • Q & A: 150 Questions and Answers

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Oracle 1Z0-048 Exam Syllabus Topics:

SectionObjectives
Installation and Configuration- Installing RAC database software
- Preparing RAC environment
- Installing Oracle Clusterware
Oracle RAC Architecture- Cache Fusion and interconnect communication
- Shared storage concepts
- Cluster fundamentals and components
Cluster and Database Administration- Backup and recovery in RAC
- Managing RAC instances
- Services configuration and management
Performance and Tuning- Load balancing and failover
- Troubleshooting performance issues
- Monitoring RAC performance
High Availability Concepts- RAC recovery scenarios
- Failover mechanisms

Oracle Database 10g R2: Administering RAC Sample Questions:

1. Richard is a senior DBA and has prepared a plan for RAC implementation in his company. Given below are some of the tasks that he would perform as part of the plan: 1) Creating the Raw Devices Mapping file 2) Creating database services 3) Binding the partitions to raw devices 4) Creating the Voting Disk file 5) Creating an initialization parameter file 6) Creating the Oracle Cluster Registry (OCR) file 7) Creating the tnsnames.ora file 8) Creating the database control file
During the creation of the RAC database, Richard can use the Database Configuration Assistant (DBCA) to perform some of these steps but not all of them. Which steps should be completed before Richard starts creating the database by using DBCA?

A) 2, 5,6,7,8
B) 1, 2,4,5,6,7
C) 2, 5,7,8
D) 1, 3,4,6
E) 3, 4,6,7,8


2. 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) 5561
B) 4889
C) 3938
D) 1521
E) 1158


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


4. After a power failure, you noticed that one of your cluster database instances did not start automatically, whereas all other instances came up successfully. What would you do to determine the precise cause for the instance startup failure? (Choose three.)

A) Check the resource state by using the CRS_STAT command.
B) Check the alert.log file that belongs to the Oracle Clusterware software.
C) Check the alert.log file that belongs to the instance that did not start.
D) Enable extra debugging in the Oracle Clusterware software by using the CRSCTL command.
E) Check for OCR corruptions by using the OCRCHECK command.
F) Reboot the node where the failing instance resides to check if the problem is persistent.
G) Check if the Oracle Clusterware is functional by using the CRSCTL command.


5. Which three types of events can you trap using server-side callouts? (Choose three.)

A) Service member down
B) Shadow application service up
C) EM Agent down
D) Service cardinality low
E) DB Console down
F) Oracle instance up
G) Listener down


Solutions:

Question # 1
Answer: D
Question # 2
Answer: D
Question # 3
Answer: B
Question # 4
Answer: A,B,C
Question # 5
Answer: A,B,F

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