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Following are some reference material for actual Oracle 1Z0-048 exam test

Oracle Database 10g R2: Administering RAC Sample Questions:

1. View the Exhibit.

A Symmetric RAC and Physical Standby Database configuration is set up for a high availability requirement matching the one in the exhibit with the primary using 'maximum availability' protection mode.
Which two benefits are there for each primary instance in sending its redo to a corresponding standby instance, rather than having all the primary instances sending redo to the same standby apply instance? (Choose two.)

A) The workloads of the archive processes on the standby instances would be balanced, thereby allowing load balancing across the cluster where the standby resides.
B) The services on the primary would be symmetric allowing performance on each instance to be equal in the event of a switchover or failover to the standby database.
C) Multiple standby instances allow the redo to be applied more quickly by the standby apply instance after the redo has already arrived from the primary.
D) Multiple standby instances allow the redo to be written to standby redo logs more quickly than just using a single receiving instance by reducing commit time on the primary instances.
E) If the redo receive load is spread across multiple receiving instances then the primary redo transport is less likely to become a bottleneck.

2. You are asked by the DBA team leader to consolidate three different Oracle databases, which supported three separate workloads, into one large three-instance RAC database on a three-node cluster. You also need to create a separate service to represent each workload type and support client-side load balancing. The CRM service has two preferred instances, the HR service has two, and the ORDERS service
has only one. Any instance may be used as an vailable instance for any service that is not
specified as a preferred service for that same instance. You decide to create three separate
entries in TNSNAMES.ORA.
Choose three options describing the number of entries you would have in each address list.
(Choose three.)

A) three entries in the address list for the HR service for the listeners on all three nodes
B) three entries in the address list for the CRM service for the listeners on all three nodes
C) one entry for the address list for the ORDERS service for the listeners on the nodes containing the preferred instance for ORDERS
D) two entries for the address list for the HR service for the listeners on the nodes containing the preferred instances for HR
E) two entries for the address list for the CRM service pointing to the listeners on the nodes containing the preferred instances for CRM
F) three entries in the address list for the ORDERS service pointing to the listeners on all three nodes

3. Which two statements regarding Oracle Clusterware are correct? (Choose two.)

A) The Oracle Database 10g CRS stack is compatible with Oracle 9i Group Services (GSD) processes.
B) The Oracle9i srvConfig.loc file still exists for backward compatibility in Oracle Database 10g.
C) The Oracle Database 10g version of the srvConfig.loc file is the ocr.loc file.
D) The installation of Oracle Clusterware is not necessary if you have already installed vendor-specific clusterware.

4. What is true about Virtual Internet Protocol Configuration Assistant (VIPCA)?

A) The VIP for each node should be bound to the adapter that is acting as the private interconnect.
B) The ifconfig -a command is used to back out a faulty VIPCA configuration.
C) Each Virtual IP (VIP) configured requires an unused and resolvable IP address.
D) The VIPCA application must be run manually on all nodes in the cluster.

5. You are preparing to create a RAC cluster. You review the RAC requirements for UNDO tablespaces. Which three are valid statements? (Choose three.

A) ALTER SYSTEM SET UNDO_TABLESPACE=undotbs3 SID='RDBD01'; is correct.
B) ALTER DATABASE SET UNDO_TABLEPACE=undotbs3 SID='RDBD01'; is correct.
C) It is not necessary to assign a specific UNDO tablespace to a specific instance.
D) You cannot assign a specific UNDO tablespace to a specific instance.
E) If no UNDO tablespace is available when the instance starts, the instance stores undo records in the SYSTEM rollback segments.

Solutions: