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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

1. 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) 1521
C) 4889
D) 3938
E) 1158

2. You are asked to investigate a problem regarding client connectivity between the HR service and a database, which is on a four-node RAC cluster. The HR service has four preferred instances on the RAC cluster. This cluster also supports five other services. Occasionally, a client-connect request for the HR service takes several minutes to connect, whereas the other five services connect within a second or two. Client-side and server-side connection load balancing are used for all the services. Which combination of network settings would explain these symptoms? (Choose two.)

A) The listener on one or more nodes is listening only on the Virtual IP address and the HR TNSNAMES entry uses the Hostnames for the Virtual IP addresses.
B) The TNSNAMES. ORA file has an entry for all six services that uses the host name for the Public IP address and not the Virtual IP address.
C) The listener on one or more nodes is listening on both the Public IP address and the Virtual IP address, and the HR TNSNAMES entry uses the Virtual IP address.
D) The TNSNAMES. ORA file has an entry for the five other services that use the hostnames for the Virtual IP addresses and all the listeners listen on both the Public and Virtual IP addresses.
E) The TNSNAMES.ORA file has an entry for the HR service that uses only the host name for the public IP address, and all the listeners listen on both the Public and Virtual IP addresses.

3. 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.)

A) You enable Oracle Clusterware debugging using the CRSCTL command as the root user.
B) You have to restart Oracle Clusterware after enabling debugging to activate it.
C) You enable Oracle Clusterware debugging using the CRSCTL command as the oracle user.
D) You enable Oracle Clusterware debugging using the SRVCTL command.
E) You can enable Oracle Clusterware debugging dynamically.

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

5. 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 checks whether all your cluster resources, such as databases, instances, listeners, and node applications, are registered within the OCR.
D) t performs an OCR integrity check.
E) t checks whether the OCR daemons are making regular backups of the OCR.

Solutions: