Oracle Other Oracle Certification 1Z0-048

Oracle Other Oracle Certification 1Z0-048 Oracle Database 10g R2: Administering RAC Exams

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Oracle Database 10g R2: Administering RAC Sample Questions:

1. Which three statements regarding the management of Oracle Cluster Registry (OCR) on a UNIX platform are true? (Choose three.)

A) The location of the OCR autobackup can be changed to a shared file system with the ocrconfig -backuploc command.
B) You can customize the OCR backup frequencies and the number of retained copies.
C) The default target location of each automatically generated OCR backup file is the <CRS Home>/cdata/<cluster name> directory.
D) The OCR autobackups are automatically copied to every ORA_CRS_HOME on each node in the cluster.
E) One CRS instance in the cluster automatically creates OCR backups every four hours, at the beginning of each day and of each week.

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

3. You have attended a user group presentation on RAC and based on what you have learned you feel that your company would benefit from having the RAC option to meet its Oracle database requirements in several ways. Your manager does not know much about RAC and asks you to create a presentation to the team explaining RAC, and whether it should be implemented in your installation. Which three statements explain the benefits and implications of RAC? (Choose three.)

A) RAC would increase availability in the event of data failures.
B) RAC used in conjunction with parallel execution may provide for speedup of OLTP workload processes.
C) RAC used in conjunction with parallel execution may provide speedup of DSS queries.
D) RAC alone would increase availability when doing release upgrades.
E) RAC alone would not help protect from human errors.
F) RAC would increase scalability for all application workloads in all cases.
G) RAC would increase availability in the event of node and instance failures.
H) RAC would increase availability in the event of a network failure.

4. You are working with Oracle Support to investigate to what extent a disk subsystem corruption has affected your Oracle cluster configuration. The support engineer wants you to run the OCRCHECK command and read out the output. What is the effect of running the OCRCHECK command?

A) t checks whether the Oracle Cluster Registry daemons are running normally.
B) t checks whether there is enough disk space for the OCR.
C) t performs an OCR integrity check.
D) t checks whether the OCR daemons are making regular backups of the OCR.
E) t checks whether all your cluster resources, such as databases, instances, listeners, and node applications, are registered within the OCR.

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

Solutions: