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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) After the Oracle Clusterware installation, you can run CLUVFY from the Oracle Home that holds the CRS binaries.
C) You can run CLUVFY directly from the Oracle Clusterware distribution media.
D) 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.
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 only from a privileged operating system account.

2. Your company has certain standard practices for technology and you are configuring ASM disk groups for your four-node RAC cluster. The company guidelines suggest that there is one disk group for the flash recovery area that is shared by all databases and a separate disk group for the database area of all databases. Which three exceptions exist that may require you to create additional disk groups? (Choose three.)

A) There are partitioned tables where the older partitions are in read-only tablespaces and seldom accessed, but the more recent partitions are frequently accessed.
B) The retention policy for backups are different for different databases.
C) The disk farm has different disk models with different characteristics and ages.
D) There are large nonpartitioned tables accessed frequently using indexes.
E) Some database instances are shut down every night while others are always running.
F) Applications using the databases have different Service-Level Agreements for response time and throughput.
G) Some databases operate in ARCHIVELOGMODE and others in NOARCHIVELOGMODE.

3. Your network administrator wants to know why you need extra IP addresses for your Oracle Real Applications Cluster now that you are upgrading from OracleSi to Oracle 10g. Which four statements would you use to explain to your network administrator the reason for requiring extra IP addresses? (Choose four.)

A) The VIPs should not be registered in the DNS.
B) The VIPs are used to prevent connection request timeouts during client connection attempts.
C) A VIP would always accept a connection from a client.
D) Database clients should connect to a RAC database using VIPs for the best High Availability solution.
E) The VIPs should be registered in the DNS.
F) The VIP addresses must be on the same subnet as the public host network addresses.
G) The VIPs are used to circumvent network timeouts on the Cluster Interconnect.
H) A VIP would notify its client when a failure occurs.

4. Your four-node RAC cluster is no longer coping with workloads for one of its databases at peak periods and you decide to add another node to the cluster. The current configuration has two RAC databases, each with four instances with only the second database using ASM as a clustered database file system. ASM is installed in a separate home. Which five steps must you take to add all the software components and processes to the new node before you run DBCAto add database and ASM instances on the new cluster nodes. Do not be concerned with the correct sequence for the steps. (Choose five.)

A) Run addNode.sh in the RDBMS home/oui/bin directory from one of the existing nodes.
B) Run addnode.sh in the Clusterware home/oui/bin directory from one of the existing nodes to define the new node to all existing nodes.
C) Run netca from the new node to add a listener to the new node.
D) Run addNode.sh in the ASM home/oui/bin directory from one of the existing nodes.
E) Run addnode.sh in the Clusterware home/oui/bin directory from each of the existing nodes once to define the new node to each existing node.
F) Run cluvfy stage -pre crsinst <list of all nodes> from one of the existing nodes to verify the cluster configuration.
G) Run racgons add_config from one of the existing nodes to add the ONS metadata to the OCR.

5. 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 ADDM report output reveals a "hot block" condition.
C) The SQL statement with the ID dqsu2hwys8rcf was executed 40000 times
D) The Findings Path section indicates that the Cluster wait class is consuming a significant proportion of the database time.

Solutions: