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Oracle Database 10g R2: Administering RAC Sample Questions:

1. You and your colleague are working with Oracle Support on a database instance stability issue. The Oracle Support engineer wants you to issue a crsctl debug log crs ?crsctl debug log crs command to assist you in your troubleshooting assignment. Why does the Oracle Support engineer want you to do this?

A) to enable extra debugging on the currently running and CRS daemons as well as those that will run in the future
B) to enable extra debugging on the CRS daemon the next time the CRS daemon is started
C) to list which debugging options are enabled on the CRS daemon
D) to enable extra debugging on the currently running CRS daemon
E) to list what debugging options are available on the CRS daemon

2. View the Exhibit and examine the diagram of the RAC environment implemented on a Linux platform in your company.
As a senior DBA, you have been assigned the task to implement ASM in this environment. You configured the raw devices that you plan to add to the ASM disk group.
How would you create an ASM instance on each node? (Choose all that apply.)

A) by using the oracleasm configure command on any of the nodes
B) by using Database Configuration Assistant (DBCA) on any one of the nodes
C) by using the oracleasm configure command on both the nodes
D) by using the ASMCMD command-line utility on both the nodes
E) by using Oracle Universal Installer (OUI) on any one of the nodes
F) by using DBCA on all nodes

3. In which two orders could you run the following commands to migrate your database to ASM?
(Choose two.)
1 SHUTDOWN IMMEDIATE;
2 SWITCH DATABASE TO COPY;
3 STARTUP NOMOUNT;
4 ALTER DATABASE OPEN;
5 ALTER DATABASE TEMPFILE '/u01/ORCL/temp1.dbf DROP;
6 ALTER SYSTEM SET db_create_file_dest='+DATA' SCOPE=SPFILE;
7 BACKUP AS COPY DATABASE FORMAT '+DATA';
8 ALTER TABLESPACE temp ADD TEMPFILE;
9 RESTORE CONTROLFILE FROM '/u01/ORCL7control1.ctl';
10 ALTER SYSTEM SET control_files=" SCOPE=SPFILE;
11 RECOVER DATABASE;
12 ALTER DATABASE MOUNT;

A) 6,10,1, 3,9,12,7,2,11,4,8,5
B) 1,2,10,3,5,4,11,6,7,8,9,12
C) 6,10,1, 3,9,12,7,2,11,8,4,5
D) 6,10,1, 9,3,12,7,2,11,4,5,8
E) 10,6,1, 3,9,12,7,2,11,4,8,5

4. The infrastructure team at your company requires your advice on maximizing availability using Maximum Availability Architecture and any other features that will help reduce planned downtime both for database instances and for the availability of database objects which applications depend on. You are already running a four node RAC cluster to protect against instance and node failures. Which four would you recommend if they are not already implemented? (Choose four.)

A) a physical standby database for rolling upgrades
B) use of freelists to manage space in table and index segments
C) use of ASM
D) use of segment shrinking to reorganize space in tables and indexes
E) use of the DBMS_REDEFINITION package
F) use of online index rebuild

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

Solutions: