Exam information

Exam 1Z0-048: Oracle Database 10g, Real Application Clusters Administrator Certified Expert

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Why was the instance not started by CRS?

View the Exhibit.Users complain about the performance of an Oracle database-based application. You are requested to investigate. From Grid Control, you immediately infer that one of the cluster database instances and one of the cluster ASM instances are currently unavailable. You also see that […]

Why was the instance not started by CRS?

View the Exhibit.Users complain about the performance of an Oracle database-based application. You are requested to investigate. From Grid Control, you immediately infer that one of the cluster database instances is currently unavailable. You also notice that the host where the instance […]


what is your conclusion, and what would you do to correct this?

After applying a patch to the network device drivers in your operating system, you verify using CRS_STAT -T that everything runs normally. View Exhibit1 for the CRS_STAT -T output.After your coffee break, customers begin complaining about the performance of your Oracle Real Application […]

How would you apply this change?

Your company is about to switch from one Internet Service Provider (ISP) to another, and this change of ISP comes along with a whole new set of network addresses. Your job is to change the VIP addresses of your company’s Oracle Cluster.How would you apply this change?

What could be the reason for this and how would you fix the problem?

View the Exhibit.While you were away on vacation, your fellow DBA added an OCR mirror to your company’s three-node Linux cluster. Based on high-availability guidelines, you are asked to verify this change. You notice that one of the nodes does not report the OCR mirror when you run OCRCHECK on […]

What would you do to prevent your cluster from failing in case of a lost OCR?

View the Exhibit.Looking at the output of the OCRCHECK command, you come to the conclusion that the OCR is a single point of failure. What would you do to prevent your cluster from failing in case of a lost OCR?

Oracle Cluster Registry can be recovered on a UNIX platform using which two commands?

Oracle Cluster Registry (OCR) can be recovered on a UNIX platform using which two commands?(Choose two.)

How many connections are established, and on which instances?

You define the ERP service using this statement:srvctl add service -d RACDB -s ERP -r RAC01 -P PRECONNECTsrvctl start service -d RACDB -s ERPYou then use this connect string to connect to your RAC instances:ERP =(DESCRIPTION […]

How many connections are established, and on which instances?

You define the ERP service using this statement:srvctl add service -d RACDB -s ERP -r RAC01 -a RAC02 -P PRECONNECTsrvctl start service -d RACDB -s ERPYou then use this connect string to connect to your RAC instances:ERP =(DESCRIPTION […]

Which initialization parameter would you use for each RAC instance to make sure that each listener on each RAC node

Which initialization parameter would you use for each RAC instance to make sure that each listener on each RAC node is aware of the load of all the others?

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