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

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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

1. Your storage administrator informs you about some disk corruption issues in the disk subsystem where your Oracle Cluster Registry (OCR) backups are located. Your storage administrator has resolved these corruption issues by applying a patch to the storage subsystem, but to be sure that the OCR backups are not affected by this problem the administrator wants you to check the integrity of the OCR backups. How would you do this?

A) You can check whether the OCR backups are not corrupted by using the OCRCHECK command.
B) You create another physical backup of the OCR backups by using the OCRCONFIG command, and if this succeeds without errors you know that the OCR backups are not corrupted.
C) You dump the OCR backup contents into a text file by using the OCRDUMP command, and if that succeeds without errors you know that your OCR backups are not corrupted.
D) You create a logical export from the OCR backups by using the OCRCONFIG command and analyze the export file for errors.
E) There is no easy way to check your OCR backups for corruptions.

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

3. You are running a two-instance database with six redo log groups defined and decide to add a third thread to support a third database instance on the third node of the cluster. Which three commands would you issue to achieve this using command line administration? (Choose three.)

A) ALTER DATABASE ADD LOGFILE THREAD 3 GROUP 7;
B) ALTER DATABASE ENABLE THREAD 3;
C) ALTER SYSTEM ADD LOGFILE THREAD 3 GROUP 8;
D) ALTER DATABASE ADD LOGFILE THREAD 3 GROUP 8;
E) ALTER SYSTEM ADD LOGFILE THREAD 3 GROUP 7;
F) ALTER SYSTEM ENABLE THREAD 3;

4. You are preparing to create a RAC cluster. You review the RAC requirements for UNDO tablespaces. Which three are valid statements? (Choose three.

A) ALTER SYSTEM SET UNDO_TABLESPACE=undotbs3 SID='RDBD01'; is correct.
B) If no UNDO tablespace is available when the instance starts, the instance stores undo records in the SYSTEM rollback segments.
C) You cannot assign a specific UNDO tablespace to a specific instance.
D) It is not necessary to assign a specific UNDO tablespace to a specific instance.
E) ALTER DATABASE SET UNDO_TABLEPACE=undotbs3 SID='RDBD01'; is correct.

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

Solutions: