Oracle 1Z0-048 : Oracle Database 10g R2: Administering RAC

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Oracle Database 10g R2: Administering RAC Sample Questions:

1. 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 to configure an ASM diskgroup containing 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 the DBCA to bind the partitions to raw devices.
D) You want to set the appropriate raw partition for each database file.

2. You have attended a user group presentation on RAC and based on what you have learned you feel that your company would benefit from having the RAC option to meet its Oracle database requirements in several ways. Your manager does not know much about RAC and asks you to create a presentation to the team explaining RAC, and whether it should be implemented in your installation. Which three statements explain the benefits and implications of RAC? (Choose three.)

A) RAC alone would not help protect from human errors.
B) RAC would increase availability in the event of data failures.
C) RAC would increase availability in the event of a network failure.
D) RAC would increase scalability for all application workloads in all cases.
E) RAC alone would increase availability when doing release upgrades.
F) RAC would increase availability in the event of node and instance failures.
G) RAC used in conjunction with parallel execution may provide speedup of DSS queries.
H) RAC used in conjunction with parallel execution may provide for speedup of OLTP workload processes.

3. 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 to configure an ASM diskgroup containing 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 the DBCA to bind the partitions to raw devices.
D) You want to set the appropriate raw partition for each database file.

4. Which three statements regarding the management of Oracle Cluster Registry (OCR) on a UNIX platform are true? (Choose three.)

A) The default target location of each automatically generated OCR backup file is the <CRS Home>/cdata/<cluster name> directory.
B) One CRS instance in the cluster automatically creates OCR backups every four hours, at the beginning of each day and of each week.
C) The OCR autobackups are automatically copied to every ORA_CRS_HOME on each node in the cluster.
D) The location of the OCR autobackup can be changed to a shared file system with the ocrconfig -backuploc command.
E) You can customize the OCR backup frequencies and the number of retained copies.

5. Which two statements are true in a RAC environment? (Choose two.)

A) When using DBCA to create a service, you do not need to add the corresponding TNS entry in your tnsnames.ora on the cluster nodes.
B) After you create a service, you need to enable it for CRS to manage it.
C) After you create a service using SRVCTL, you need to start it with a separate command.
D) When using SRVCTL to create a service, you do not need to add the corresponding TNS entry in your tnsnames.ora.
E) After you create a service using Database Configuration Assistant (DBCA), you need to start it with a separate command.

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