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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

Question 1

The following are some of the tasks that are performed during a RAC implementation: 1) Setting the Oracle database-related environment variables 2) Creating a password file 3) Installing Management Service and Management Agent 4) Creating and editing the Raw Device Mapping file 5) Creating an ASM instance 6) Creating the Oracle Cluster Registry (OCR) file 7) Implementing the Transparent Application Failover (TAF) policy 8) Creating database services Identify the tasks that can be performed using the DBCA, or performed by the DBCA, during database creation in the RAC implementation.

A. 2,3,4,6,7
B. 2,3,5,7,8
C. 1,3,4,6
D. All the tasks
E. 1,2,3,5,6,8

Question 2

What does your client connection do using this connect string?
n et_s e rvi c e_n a m e=
(DESCRIPTION
(LOAD_BALANCE=on)
(ADDRESS=(PROTOCOL=tcp)(HOST=sales1 -svr-vip)(PORT=1521))
(ADDRESS=(PROTOCOL=tcp)(HOST=sales2-svr-vip)(PORT=1521)))
(CONNECT_DATA=(SERVICE_NAME=sales. us. acme, com))

A. It connects you to the least loaded node.
B. It randomizes its connection request on the available listeners.
C. It connects you to the instance on the least loaded node that currently accepts logins for the SALES.US.ACME.COM service.
D. It connects you to the least loaded instance.

Question 3

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 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.
B. 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.
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. If the redo receive load is spread across multiple receiving instances then the primary redo transport is less likely to become a bottleneck.
E. The workloads of the archive processes on the standby instances would be balanced, thereby allowing load balancing across the cluster where the standby resides.

Question 4

After a power failure, you noticed that one of your cluster database instances did not start automatically, whereas all other instances came up successfully. What would you do to determine the precise cause for the instance startup failure? (Choose three.)

A. Reboot the node where the failing instance resides to check if the problem is persistent.
B. Check the alert.log file that belongs to the instance that did not start.
C. Check if the Oracle Clusterware is functional by using the CRSCTL command.
D. Enable extra debugging in the Oracle Clusterware software by using the CRSCTL command.
E. Check for OCR corruptions by using the OCRCHECK command.
F. Check the resource state by using the CRS_STAT command.
G. Check the alert.log file that belongs to the Oracle Clusterware software.

Question 5

Several steps must be followed to successfully add a new node to your cluster database. Assuming that a UNIX platform is used, which of the three steps below are correct? (Choose three.)

A. Reconfigure listeners for the new node with netca.
B. Configure the OS and hardware for the new node.
C. Add instances using OUI.
D. Add the node to the cluster using the addnode.sh script run from ORA_CRS_HOME.
E. Add the RAC software to the new node using addnode.sh from ORA_CRS_HOM

Solutions: