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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

1. You want check whether the group services node application is running on all the nodes in your cluster before you create a cluster database. Which utility can you use to make sure the node application is running on all nodes in the cluster?

A) crs_stat
B) crsctl
C) onsctl
D) Isnrctl
E) addnode.sh

2. You observe a high number of gc current failure on your RAC system. What could be causing this issue?

A) Too much parsing is occurring on your system.
B) You are not using the correct private interconnect.
C) Too much manual locking is occurring.
D) There is too much contention on the High Water Mark enqueue of your tables.

3. After adding two new high-performance nodes to your existing eight-node Oracle Database cluster, you decide to remove the two oldest nodes from your cluster. You start by removing the instances from the nodes you are about to remove by using the Database Configuration Assistant (DBCA). During the execution, a problem arises and the DBCA terminates with a fatal exception. Before you contact Oracle Support, you want to create a Java-based tool trace file so that Oracle Support can assist you in resolving this issue as quickly as possible. How would you create this trace file?

A) There is no need to do anything special because Java-based tool tracing is enabling by default for DBCA.
B) Request extra information by adding the -d (debug) command line flag at the DBCA command line.
C) Set the DEBUG environment variable to TRUE before you execute the DBCA command.
D) Set the SRVM_DEBUG environment variable to TRUE before you execute the DBCA command.
E) Set the SRVM_TRACE environment variable to TRUE before you execute the DBCA command.
F) Request extra information by adding the -v (verbose) command-line flag at the DBCA command line.

4. Which three statements regarding the management of Oracle Cluster Registry (OCR) on a UNIX platform are true? (Choose three.)

A) The OCR autobackups are automatically copied to every ORA_CRS_HOME on each node in the cluster.
B) The default target location of each automatically generated OCR backup file is the <CRS Home>/cdata/<cluster name> directory.
C) One CRS instance in the cluster automatically creates OCR backups every four hours, at the beginning of each day and of each week.
D) The location of the OCR autobackup can be changed to a shared file system with the ocrconfig -backuploc command.
E) You can customize the OCR backup frequencies and the number of retained copies.

5. 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) For the voting disk, it is better to rely on multipathing solutions instead of multiplexing.
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) If multiplexing, two voting disks on independent devices is ideal.

Solutions: