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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

Question 1

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 Oracle Universal Installer (OUI) on any one of the nodes
E. by using DBCA on all nodes
F. by using the ASMCMD command-line utility on both the nodes

Question 2

Which CREATE SEQUENCE option is the most scalable?

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

Question 3

You are about to build a new Oracle Clusterware-based cluster and you want to make the installation process as smooth as possible. You decide to use the Cluster Verification Utility (CLUVFY) to check whether or not your system administrator has set up the hardware and system software correctly. Which two statements about CLUVFY are true? (Choose two.)

A. You can run CLUVFY only from a privileged operating system account.
B. You can run CLUVFY directly from the Oracle Clusterware distribution media.
C. To use CLUVFY during the Oracle Clusterware installation, you have to download CLUVFY from the Oracle Technology Network (OTN) Web site and install it before you can use it.
D. CLUVFY cannot be used until the Oracle Clusterware is installed successfully.
E. After the Oracle Clusterware installation, you can run CLUVFY from the Oracle Home that holds the CRS binaries.
F. You have to install CLUVFY on all cluster nodes in order to use CLUVFY on other nodes than the one from which you perform the installation.

Question 4

You have a well-tuned, non-RAC single instance Oracle database with several services, all of which perform perfectly. You plan to migrate the database to RAC in the next two weeks and all file systems would be shared using Oracle Cluster File System. After the migration, you want to perform a test to monitor RAC-specific tuning issues that would not have occurred on a non-RAC database. Which six areas would you monitor to determine whether there are RAC-specific performance problems after migration? (Choose six.)

A. Services with insert-intensive applications that use Oracle sequences for index keys
B. Services with applications that truncate large tables
C. Services with insert-intensive applications that generate their own keys without Oracle sequences
D. Services with applications using local context variables
E. Services with applications that use external tables
F. Interconnect latency
G. Services with query-intensive applications relying on full table scans
H. Instance recovery time
I. Services with applications that have occasional queries, using index access on modestly sized tables

Question 5

Which three statements about quiescing a RAC database are true? (Choose three.)

A. Use the ALTER SYSTEM QUIESCE RESTRICTED statement from a single instance.
B. It is possible to take a cold backup while the database is in a quiesced state.
C. The database cannot be opened from another instance until the ALTER SYSTEM QUIESCE?statement finishes execution.
D. The ALTER SYSTEM QUIESCE RESTRICTED and ALTER SYSTEM UNQUIESCE statements affect all instances in a RAC environment.

Solutions: