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Oracle 1Z0-048 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Oracle Clusterware Installation and Configuration | 20% | - Installing and configuring Clusterware - Managing Clusterware components - Pre-installation tasks and requirements |
| Topic 2: Monitoring and Performance Tuning | 10% | - Monitoring RAC environment - Resolving common performance issues |
| Topic 3: Oracle RAC Installation and Database Creation | 20% | - Installing Oracle RAC software - Creating RAC databases with DBCA - Preparing for RAC installation |
| Topic 4: Automatic Storage Management (ASM) for RAC | 15% | - Installing and configuring ASM - Managing ASM instances and disk groups |
| Topic 5: RAC Database and Instance Administration | 20% | - Using SRVCTL and Enterprise Manager - Managing services and workloads - Starting and stopping RAC components |
| Topic 6: Backup and Recovery in RAC Environment | 15% | - Configuring RMAN for RAC - Performing backup and recovery operations |
Oracle Database 10g R2: Administering RAC Sample Questions:
In a RAC environment, you see a steep increase for enq:HW- contention and gc current grant wait events. What would you do to fix this issue?
- A. Use larger uniform extent sizes for objects.
- B. Increase the cache size of sequences.
- C. Reduce the number of updates causing locks on tables accessed by multiple instances.
- D. Reduce the time of transactions by committing more often.
Correct Answer: A 🗳️
In which two orders could you run the following commands to migrate your database to ASM?
(Choose two.)
1 SHUTDOWN IMMEDIATE;
2 SWITCH DATABASE TO COPY;
3 STARTUP NOMOUNT;
4 ALTER DATABASE OPEN;
5 ALTER DATABASE TEMPFILE '/u01/ORCL/temp1.dbf DROP;
6 ALTER SYSTEM SET db_create_file_dest='+DATA' SCOPE=SPFILE;
7 BACKUP AS COPY DATABASE FORMAT '+DATA';
8 ALTER TABLESPACE temp ADD TEMPFILE;
9 RESTORE CONTROLFILE FROM '/u01/ORCL7control1.ctl';
10 ALTER SYSTEM SET control_files=" SCOPE=SPFILE;
11 RECOVER DATABASE;
12 ALTER DATABASE MOUNT;
- A. 6,10,1, 9,3,12,7,2,11,4,5,8
- B. 1,2,10,3,5,4,11,6,7,8,9,12
- C. 10,6,1, 3,9,12,7,2,11,4,8,5
- D. 6,10,1, 3,9,12,7,2,11,4,8,5
- E. 6,10,1, 3,9,12,7,2,11,8,4,5
Correct Answer: C,D 🗳️
View the Exhibit, which displays the cluster database performance page after the same workload has been executed three times on your cluster without varying any non-Oracle workloads on the cluster. What are the two ways by which you can tell that the corresponding application was better tuned during the second and third execution? (Choose two.)
- A. The run queue length is going down each time.
- B. It takes less time to execute the workload each time.
- C. The database throughput graphic is below the red dashed line during the last execution.
- D. There is less paging each time.
- E. The number of transactions per second is getting higher each time.
Correct Answer: B,E 🗳️
You are about to bring your Web server under control of the Oracle Clusterware to make it highly available. Which actions do you need to perform to accomplish this task? (Choose all that apply.
- A. Create an application profile using crs_profile, register it with crs_register, set its permission with crs_setperm, and then start it with crs_start.
- B. Write an action script that Oracle Clusterware would use to start, stop, and check the status of an application.
- C. Create an application VIP profile using crs_profile, register it with crs_register, set its permission with crs_setperm, and then start it using crs_start.
- D. Once done, manage the Web server with SRVCTL
- E. Have the system administrator create an application VIP at the operating system level for you to use with the application.
Correct Answer: A,B,C 🗳️
After migrating from a 10g R1 cluster to 10g R2, you decide to multiplex your voting disk. Which are the two ways in which you can accomplish this task? (Choose two.)
- A. You may use the VIPCA utility to add new voting disks.
- B. You may use the command:
crsctl add ess votedisk <new voting disk path> - C. You can add additional voting disks online.
- D. You should not use symbolic links.
- E. You must add additional voting disks offline.
Correct Answer: B,C 🗳️
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