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Oracle Database 10g R2: Administering RAC Sample Questions:

1. You need to add a new service to your RAC database, called DBA, to account for all the work done by database administrator sessions performing routine maintenance, to make this visible in the v$service_stats view. The maintenance would be done at quieter times but restricted session is not an option due to round-the-clock access requirements. The database administration team may connect locally or remotely to the RAC database. You decide to use DBCAto create the new service. What must be true to allow client-server connection to the DBA service? (Choose two.)

A) The service must be started using the DBMS_SERVICE.START_SERVICE procedure.
B) The TNSNAMES.ORAfile or a name server must contain the net service entries for the DBA service.
C) The service must have at least one preferred or available instance that is running and accepting logins.
D) The ALTER SYSTEM REGISTER command must be used to induce PMON to register the service with the listeners.
E) The services must be started using the SRVCTL START SERVICE command.
F) All the listeners must be reloaded using LSNRCTL RELOAD to recognize the dynamically created service.

2. Which two initialization parameters must be set to start up an ASM instance in a RAC environment? (Choose two.)

A) CLUSTER DATABASE
B) ASM_DISKGROUPS
C) INSTANCE_TYPE
D) ASM_POWER_LIMIT
E) ASM_DISKSTRING
F) B_UNIQUE_NAME

3. You are working as a DBA in a RAC environment that is available for testing. The RAC environment has all the database files stored in the OCFS file system. You plan to install ASM and move all the database files to ASM to achieve better performance. During the installation, you selected redundancy level as normal for the disk group being added. What is the reason for selecting this redundancy level?

A) You have three failure groups defined, so you want to use three-way mirroring.
B) You want to use hardware mirroring.
C) You have two failure groups defined, so you want to use two-way mirroring.
D) You do not want to have any mirroring in the disk group.

4. View the Exhibit.
You are asked to help a colleague to logically remove node NLEDUC2 from a RAC cluster
installation.
On observing the colleague's terminal, you notice the output as seen in the exhibit. Based on this,
which five additional steps would you recommend? Do not be concerned with the correct
sequence for the steps.
(Choose five.)

A) Check that the node has been removed from the database and ASM inventories.
B) Stop and restart the clusterware on NLEDUC1.
C) Remove the node from the clusterware.
D) Remove the listener from NLEDUC2.
E) Check that the database and ASM instances are all terminated on NLEDUC2.
F) Check that the ONS configuration has been updated on the remaining node.
G) Stop and restart the nodeapps on NLEDUC1.
H) Check that the software has been removed from the database and ASM homes on NLEDUC2.

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

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