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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

1. You are about to build a new Oracle Clusterware-based cluster and you want to make the installation process as smooth as possible. You decide to use the Cluster Verification Utility (CLUVFY) to check whether or not your system administrator has set up the hardware and system software correctly. Which two statements about CLUVFY are true? (Choose two.)

A) CLUVFY cannot be used until the Oracle Clusterware is installed successfully.
B) You have to install CLUVFY on all cluster nodes in order to use CLUVFY on other nodes than the one from which you perform the installation.
C) After the Oracle Clusterware installation, you can run CLUVFY from the Oracle Home that holds the CRS binaries.
D) You can run CLUVFY only from a privileged operating system account.
E) To use CLUVFY during the Oracle Clusterware installation, you have to download CLUVFY from the Oracle Technology Network (OTN) Web site and install it before you can use it.
F) You can run CLUVFY directly from the Oracle Clusterware distribution media.

2. 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) Increase the cache size of sequences.
B) Reduce the time of transactions by committing more often.
C) Use larger uniform extent sizes for objects.
D) Reduce the number of updates causing locks on tables accessed by multiple instances.

3. 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 create a logical export from the OCR backups by using the OCRCONFIG command and analyze the export file for errors.
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) There is no easy way to check your OCR backups for corruptions.
E) You can check whether the OCR backups are not corrupted by using the OCRCHECK command.

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

5. After adding two new high-performance nodes to your existing eight-node Oracle Database cluster, you decide to remove the two oldest nodes from your cluster. You start by removing the instances from the nodes you are about to remove by using the Database Configuration Assistant (DBCA). During the execution, a problem arises and the DBCA terminates with a fatal exception. Before you contact Oracle Support, you want to create a Java-based tool trace file so that Oracle Support can assist you in resolving this issue as quickly as possible. How would you create this trace file?

A) Request extra information by adding the -v (verbose) command-line flag at the DBCA command line.
B) Request extra information by adding the -d (debug) command line flag at the DBCA command line.
C) There is no need to do anything special because Java-based tool tracing is enabling by default for DBCA.
D) Set the SRVM_DEBUG environment variable to TRUE before you execute the DBCA command.
E) Set the SRVM_TRACE environment variable to TRUE before you execute the DBCA command.
F) Set the DEBUG environment variable to TRUE before you execute the DBCA command.

Solutions: