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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

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

2. While creating a new service inside your ORCL database, you encounter a problem during the execution of the srvctl add service command. Because you are unable to explain the reason for this failure, you decide to log a service request in Oracle Metalink. You want to make this service request as complete as possible. You want to create a trace file from your problematic srvctl command execution so that Oracle Support has all possible information to quickly identify and resolve your problem. How do you create a Java-based tool trace file?

A) Request extra information by adding the -v (verbose) command-line flag at the srvctl command line.
B) Set the DEBUG environment variable to TRUE before you execute the srvctl command.
C) Request extra information by adding the -d (debug) command-line flag at the srvctl command line.
D) Set the SRVM_TRACE environment variable to TRUE before you execute the srvctl command.
E) Set the SRVM_DEBUG environment variable to TRUE before you execute the srvctl command.

3. What should you do when creating a disk group that would store your RAC database?

A) Make sure that all database instances are running in restricted mode.
B) Make sure that the disk group is mounted by all ASM instances.
C) Make sure that ASM targets are accessible from Database Control.
D) Make sure that all database instances are functional.

4. You are the administrator of a Linux-based Oracle cluster. To meet your company's disaster recovery requirements, you have to make backups of the OCR to a tape device. What are your options? (Choose all that apply.)

A) Use your favorite tape backup command to back up the physical OCR backups from disk to tape.
B) Use RMAN to back up the OCR from disk to tape.
C) Use the Linux DD command to write the OCR directly to tape.
D) Use your favorite tape backup command to back up the OCR from disk to tape.
E) Use the OCRCONFIG command to have CRSD write the OCR backup to tape for you.

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

Solutions: