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Oracle 1Z0-048 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Oracle RAC Architecture | - Cluster fundamentals and components - Shared storage concepts - Cache Fusion and interconnect communication |
| Topic 2: High Availability Concepts | - Failover mechanisms - RAC recovery scenarios |
| Topic 3: Installation and Configuration | - Installing Oracle Clusterware - Preparing RAC environment - Installing RAC database software |
| Topic 4: Cluster and Database Administration | - Managing RAC instances - Backup and recovery in RAC - Services configuration and management |
| Topic 5: Performance and Tuning | - Load balancing and failover - Troubleshooting performance issues - Monitoring RAC performance |
Oracle Database 10g R2: Administering RAC Sample Questions:
1. View the Exhibit and examine an installation step of Oracle Enterprise Manager Grid Control 10gR2 to manage your RAC installation. You entered the host name but you are not sure about the port number. Thefollowing is the list of port numbers from the host ed-otraclin17b.us.oracle.com:
A) 4889
B) 5561
C) 1158
D) 1521
E) 3938
2. Which two views can be used to identify SQL statements affected by interconnect latencies in your RAC environment? (Choose two.)
A) the V$SQL_PLAN view
B) the VJSQL CURSOR view
C) the VJSQL view
D) the VJSQLTEXT view
E) the VJSQLAREA view
3. After a power failure, you noticed that one of your cluster database instances did not start automatically, whereas all other instances came up successfully. What would you do to determine the precise cause for the instance startup failure? (Choose three.)
A) Check if the Oracle Clusterware is functional by using the CRSCTL command.
B) Check for OCR corruptions by using the OCRCHECK command.
C) Check the alert.log file that belongs to the Oracle Clusterware software.
D) Check the resource state by using the CRS_STAT command.
E) Reboot the node where the failing instance resides to check if the problem is persistent.
F) Enable extra debugging in the Oracle Clusterware software by using the CRSCTL command.
G) Check the alert.log file that belongs to the instance that did not start.
4. You define the ERP service using this statement:
srvctl add service -d RACDB -s ERP -r RAC01 -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))
(CONNECTJDATA = (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) only one on RAC01
B) two on RAC01
C) one on RAC01 and one on RAC02
D) two on RAC02
5. You are working with Oracle Support to resolve an issue regarding the Oracle Clusterware software. The Oracle support engineer wants you to upload all relevant CRS log and trace files.
How would you provide al the requested log and trace files?
A) Collect all required log and trace files using the diagcollection.plcommand and upload them to Oracle Support.
B) Use Grid Control to collect and send all required log and trace files to Oracle Supporl.
C) Upload each and every available log and trace files to Oracle Support.
D) Use an operating system command to create an archive with all the log and trace files stored in the ORA_CRS_HOME/log directory and upload the files to Oracle Support.
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: C,E | Question # 3 Answer: C,D,G | Question # 4 Answer: A | Question # 5 Answer: A |








