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Oracle Database 10g R2: Administering RAC Sample Questions:

1. Which CREATE SEQUENCE option is the most scalable?

A) CACHE NOORDER
B) CACHE ORDER
C) NOCACHE ORDER
D) NOCACHE NOORDER

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

3. Richard is a senior DBA and has prepared a plan for RAC implementation in his company. Given below are some of the tasks that he would perform as part of the plan: 1) Creating the Raw Devices Mapping file 2) Creating database services 3) Binding the partitions to raw devices 4) Creating the Voting Disk file 5) Creating an initialization parameter file 6) Creating the Oracle Cluster Registry (OCR) file 7) Creating the tnsnames.ora file 8) Creating the database control file
During the creation of the RAC database, Richard can use the Database Configuration Assistant (DBCA) to perform some of these steps but not all of them. Which steps should be completed before Richard starts creating the database by using DBCA?

A) 2, 5,6,7,8
B) 1, 3,4,6
C) 1, 2,4,5,6,7
D) 2, 5,7,8
E) 3, 4,6,7,8

4. You have migrated your 10g R1 cluster to 10g R2. You wish to create multiple copies of the voting disk. What must you consider when doing this?

A) If multiplexing, two voting disks on independent devices is ideal.
B) If multiplexing, three voting disks on independent devices is ideal.
C) Since ASM is the stated direction of Oracle, ASM is the best storage for voting disks.
D) For the voting disk, it is better to rely on multipathing solutions instead of multiplexing.

5. You decide to change the redo thread of one of your database instances.
Now you have only two threads: thread 1 is currently being used by instance RAC01, and thread 2 is currently being used by instance RAC02.
In which three orders could you perform the following commands to add thread 3 to your
database, and ensure that instance RAC01 is using thread 3? (Choose three acceptable orders.
1 srvctl stop instance -d RACDB -i RAC01
2 ALTER DATABASE ENABLE THREAD 3;
3 ALTER DATABASE ADD LOGFILE THREAD 3 GROUP 6;
4 srvctl start instance -d RACDB -i RAC01
5 ALTER SYSTEM SETthread=3 SCOPE=SPFILE SID='RAC01';
6 ALTER DATABASE ADD LOGFILE THREAD 3 GROUP 5;

A) 6,3,2, 5,1
B) 6,3,5, 2,1
C) 2,6,3, 5,1
D) 2,5,1, 4,3
E) 2,5,1, 4,6
F) 3,6,5, 2,1

Solutions: