Oracle 1Z0-048 Actual Free Exam Questions & Community Discussion

  • Exam Code/Number: 1Z0-048
  • Exam Name/Title: Oracle Database 10g R2: Administering RAC
  • Certification Provider: Oracle
  • Corresponding Certification: Other Oracle Certification
  • Exam Questions: 150
  • Updated On: Jul 07, 2026
You are considering issues involving backup and recovery of the voting disk. Select four correct statements. (Choose four.)
Correct Answer: A,B,E Vote an answer
Your system administrator informs you that there are a number of unexpected system reboots occurring on one of your Oracle database clusters. The system administrator has no clue whether this is a hardware or system software issue or whether the Oracle Clusterware is causing these reboots. To determine the source of these unexpected reboots, the system administrator asks you how you can enable debugging on the Oracle Clusterware software components. Which two statements are true regarding Oracle Clusterware debugging? (Choose two.)
Correct Answer: C,D Vote an answer
The maximum number of redo threads for a database from 10g R2 is
Correct Answer: C Vote an answer
View the Exhibit, which displays a portion of an ADDM report from a RAC database. Which three statements are true? (Choose three.)
Correct Answer: A,B,D Vote an answer
View the Exhibit, which displays a portion of an ADDM report from a RAC database. Which three statements are true? (Choose three.)
Correct Answer: A,B,D Vote an answer
Which three tools can you use to patch your RAC database? (Choose three.)
Correct Answer: A,D,F Vote an answer
You have a three-tier architecture for your application, which uses an Oracle RAC database and a middle tier that uses Oracle Application Server with Java programming, using JDBC as the standard. There are three RAC services defined, and four instances in the database are using ASM as the cluster file system. Connection pools are also used. Which three features of Fast Application Notification would be beneficial in your environment, and which choices for your application would you recommend? (Choose three.)
Correct Answer: C,D,E Vote an answer
Oracle Cluster Registry (OCR) can be recovered on a UNIX platform using which two commands? (Choose two.)
Correct Answer: C,D Vote an answer
You define the ERP service using this statement:
srvctl add service -d RACDB -s ERP -r RAC01 -a RAC02 -P PRECONNECT srvctl start service -d
RACDB -s ERP
You then use this connect string to connect to your RAC instances:
ERP =
(DESCRIPTION =(FAILOVER=ON)(LOAD_BALANCE=ON)
(ADDRESS=(PROTOCOL=TCP)(HOST=N1 VIP)(PORT=1521))
(ADDRESS=(PROTOCOL=TCP)(HOST=N2VIP)(PORT=1521))
(CONNECT_DATA = (SERVICE_NAME = ERP)
(FAILOVER_MODE =
(BACKUP=ERP_PRECONNECT)(TYPE=SESSION)(METHOD=PRECONNECT))))
You successfully establish a connection to your RAC database using the above connect string.
How many connections are established, and on which instances?
Correct Answer: A Vote an answer
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.
Correct Answer: F,I Vote an answer
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