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Oracle Database 10g R2: Administering RAC Sample Questions:

1. According to the Maximum Availability Architecture, which case is best?

A) Run two identical sites with a primary RAC database on the first site, and RAC physical and logical standby databases on the second site.
B) Run two identical sites with a primary RAC database on the first site, and only a RAC logical standby database on the second site.
C) Run two identical sites with a primary RAC database on the first site, and non-RAC physical and logical standby databases on the second site.
D) Run two identical sites with a primary RAC database on the first site, and only a RAC physical standby database on the second site.

2. Your system administrator informs you that there are a number of unexpected system reboots occurring on one of your Oracle database clusters. The system administrator has no clue whether this is a hardware or system software issue or whether the Oracle Clusterware is causing these reboots. To determine the source of these unexpected reboots, the system administrator asks you how you can enable debugging on the Oracle Clusterware software components. Which two statements are true regarding Oracle Clusterware debugging? (Choose two.)

A) You enable Oracle Clusterware debugging using the CRSCTL command as the root user.
B) You enable Oracle Clusterware debugging using the SRVCTL command.
C) You can enable Oracle Clusterware debugging dynamically.
D) You have to restart Oracle Clusterware after enabling debugging to activate it.
E) You enable Oracle Clusterware debugging using the CRSCTL command as the oracle user.

3. After migrating from a 10g R1 cluster to 10g R2, you decide to multiplex your voting disk. Which are the two ways in which you can accomplish this task? (Choose two.)

A) You may use the VIPCA utility to add new voting disks.
B) You must add additional voting disks offline.
C) You can add additional voting disks online.
D) You should not use symbolic links.
E) You may use the command:
crsctl add ess votedisk <new voting disk path>

4. You define the ERP service using this statement:
srvctl add service -d RACDB -s ERP -r RAC01 -a RAC02 -P PRECONNECT srvctl start service -d
RACDB -s ERP
You then use this connect string to connect to your RAC instances:
ERP =
(DESCRIPTION =(FAILOVER=ON)(LOAD_BALANCE=ON)
(ADDRESS=(PROTOCOL=TCP)(HOST=N1 VIP)(PORT=1521))
(ADDRESS=(PROTOCOL=TCP)(HOST=N2VIP)(PORT=1521))
(CONNECT_DATA = (SERVICE_NAME = ERP)
(FAILOVER_MODE =
(BACKUP=ERP_PRECONNECT)(TYPE=SESSION)(METHOD=PRECONNECT))))
You successfully establish a connection to your RAC database using the above connect string.
How many connections are established, and on which instances?

A) two on RAC01
B) one on RAC01 and one on RAC02
C) two on RAC02
D) only one on RAC01

5. What is the action of your client connection when it is using the following connect string? net_service_name= (DESCRIPTION (ADDRESS=(PROTOCOL=tcp)(HOST=sales1 -svr-vip)(PORT=1521)) (ADDRESS=(PROTOCOL=tcp)(HOST=sales2-svr-vip)(PORT=1521))) (CONNECT_DATA=(SERVICE_NAME=sales. us. acme, com)))

A) It always connects you to the first protocol address.
B) It always connects you to the least loaded node.
C) It tries to connect you to the listener on SALES2-SRV-VIP if the listener on SALES1-SRV-VIP is down.
D) It randomizes its connection on the available listeners.

Solutions: