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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

1. Which CREATE SEQUENCE option is the most scalable?

A) CACHE NOORDER
B) NOCACHE NOORDER
C) CACHE ORDER
D) NOCACHE ORDER

2. Which two statements are true regarding high availability in a RAC environment? (Choose two.)

A) When you have a serious crash of your primary site, it is your responsibility to initiate the failover to the standby site in case you are not using the Fast-Start Failover feature.
B) Each primary RAC instance must send its redo stream to the same standby RAC instance.
C) You can have multiple RAC instances apply standby redo log files to the standby database.
D) It is the Data Guard Broker's responsibility to communicate with CRS during a switchover operation to stop and start services according to each Data Guard site role.
E) When you have a serious crash of your primary site, Data Guard Broker automatically initiates the failover to the standby site.

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

4. According to the Maximum Availability Architecture, which case is best?

A) Run two identical sites with a primary RAC database on the first site, and only a RAC logical standby database on the second site.
B) Run two identical sites with a primary RAC database on the first site, and RAC physical and logical standby databases on the second site.
C) Run two identical sites with a primary RAC database on the first site, and non-RAC physical and logical standby databases on the second site.
D) Run two identical sites with a primary RAC database on the first site, and only a RAC physical standby database on the second site.

5. You have migrated your 10g R1 cluster to 10g R2. You wish to create multiple copies of the voting disk. What must you consider when doing this?

A) For the voting disk, it is better to rely on multipathing solutions instead of multiplexing.
B) If multiplexing, three voting disks on independent devices is ideal.
C) Since ASM is the stated direction of Oracle, ASM is the best storage for voting disks.
D) If multiplexing, two voting disks on independent devices is ideal.

Solutions: