PDF Version DemoOracle 1Z0-048 Exam Overview:
| Certification Vendor: | Oracle |
| Exam Name: | Oracle Database 10g R2: Administering RAC |
| Exam Number: | 1Z0-048 |
| Exam Duration: | 120 minutes |
| Available Languages: | English |
| Exam Format: | Multiple Choice, Multiple Response |
| Related Certifications: | Oracle Database 10g Administrator Certified Associate (OCA) Oracle Database 10g Administrator Certified Professional (OCP) |
| Exam Price: | $245 USD |
| Recommended Training: | Oracle University Training |
| Exam Registration: | Oracle Certification Portal |
| Sample Questions: | Oracle 1Z0-048 Sample Questions |
| Exam Way: | Proctored exam (online or testing center depending on Oracle partner delivery at the time) |
| Pre Condition: | Recommended: Oracle Database 10g Administrator Certified Associate (OCA) or equivalent DBA experience |
| Official Syllabus URL: | https://education.oracle.com |
Oracle 1Z0-048 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Oracle RAC Architecture | - Cache Fusion and interconnect communication - Cluster fundamentals and components - Shared storage concepts |
| Performance and Tuning | - Load balancing and failover - Troubleshooting performance issues - Monitoring RAC performance |
| High Availability Concepts | - Failover mechanisms - RAC recovery scenarios |
| Installation and Configuration | - Preparing RAC environment - Installing RAC database software - Installing Oracle Clusterware |
| Cluster and Database Administration | - Managing RAC instances - Services configuration and management - Backup and recovery in RAC |
Oracle Database 10g R2: Administering RAC Sample Questions:
1. You are creating a database in your RAC implementation. You are using the DBCA to create the database, and you selected the Raw Devices Mapping file on one of the screens of the DBCA. What is the reason for selecting this file?
A) You want the DBCA to bind the partitions to raw devices.
B) You want to provide the DBCA with a list of all the storage devices that are currently bound to a raw interface.
C) You want to configure an ASM diskgroup containing raw devices.
D) You want to set the appropriate raw partition for each database file.
2. You observe a high number of gc current failure on your RAC system. What could be causing this issue?
A) Too much parsing is occurring on your system.
B) Too much manual locking is occurring.
C) You are not using the correct private interconnect.
D) There is too much contention on the High Water Mark enqueue of your tables.
3. Your storage administrator informs you about some disk corruption issues in the disk subsystem where your Oracle Cluster Registry (OCR) is located. Your storage administrator has resolved these corruption issues by applying a patch to the storage subsystem, but to be sure that the OCR is not affected by this problem the administrator wants you to check the integrity of the OCR. How would you do this?
A) You create a logical export from the OCR by using the OCRCONFIG command and analyze the export file for errors.
B) You create a physical backup of the OCR by using the OCRCONFIG command, and if this succeeds without errors you know that the OCR is not corrupted.
C) You can check whether the OCR is not corrupted by using the OCRCHECK command.
D) You dump the OCR contents into a text file by using the OCRDUMP command, and if that succeeds without errors you know that your OCR is not corrupted.
E) There is no easy way to check your OCR for corruptions.
4. View the Exhibit, which displays a portion of an ADDM report from a RAC database. Which three statements are true? (Choose three.)
A) A LOCK TABLE statement is causing excessive inter-instance messaging.
B) The Findings Path section indicates that the Cluster wait class is consuming a significant proportion of the database time.
C) The SQL statement with the ID dqsu2hwys8rcf was executed 40000 times
D) The ADDM report output reveals a "hot block" condition.
5. Which statement is true?
A) You must use RMAN to migrate your change-tracking file to ASM storage.
B) You must use RMAN to migrate your online redo log files to ASM storage.
C) You must use RMAN to migrate yourtempfiles to ASM storage.
D) You must use RMAN to migrate your data files to ASM storage.
E) You can migrate your entire database to ASM storage without shutting down your database.
F) You must use RMAN to migrate your flashback log files to ASM storage.
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: C | Question # 3 Answer: C | Question # 4 Answer: A,B,C | Question # 5 Answer: D |
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