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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

Question 1

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

Question 2

Which statement is true regarding undo management in a RAC environment?

A. It is possible to store undo tablespaces on nonshared disks.
B. You cannot mix automatic undo management and manual undo management.
C. A RAC database contains one undo tablespace shared by all instances.
D. A RAC database must have defined only one undo tablespace for each instance.

Question 3

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.

Question 4

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.

Question 5

You are asked to justify your proposed Maximum Availability Architecture to the IT director who feels that a four-node RAC cluster on the primary should not require a four-node RAC cluster for a physical standby database. The director suggests that either a non-RAC database should be used on the standby or that at most a two-node cluster is all that is required. Your proposed architecture was designed for both planned and unplanned downtime and for performance and scalability of services for all eventualities. How would you justify your proposal? (Choose two.)

A. The four-node physical standby database provides for continuous availability of services but the two-node RAC physical standby database does not.
B. A two-node physical standby would not allow as many services to be supported as a four-node physical standby does in case of a failover to the physical standby.
C. The four-node physical standby provides for the same service preferences and performance profile in case of a failover to the physical standby database.
D. Asymmetric configurations prevent the standby from issuing a FLASHBACK DATABASE command if required after a failover.
E. A non-RAC physical standby would not provide for high availability in the case of a lights out failover to the standby.

Solutions: