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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

1. View the Exhibit.
You are asked to help a colleague to logically remove node NLEDUC2 from a RAC cluster
installation.
On observing the colleague's terminal, you notice the output as seen in the exhibit. Based on this,
which five additional steps would you recommend? Do not be concerned with the correct
sequence for the steps.
(Choose five.)

A) Remove the listener from NLEDUC2.
B) Check that the node has been removed from the database and ASM inventories.
C) Remove the node from the clusterware.
D) Stop and restart the clusterware on NLEDUC1.
E) Check that the software has been removed from the database and ASM homes on NLEDUC2.
F) Check that the ONS configuration has been updated on the remaining node.
G) Stop and restart the nodeapps on NLEDUC1.
H) Check that the database and ASM instances are all terminated on NLEDUC2.

2. Which three tools can you use to patch your RAC database? (Choose three.)

A) emctl
B) EM Database Control
C) opatch
D) Oracle Universal Installer
E) emca
F) dbca

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

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

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

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

Solutions: