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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

1. You are migrating a single-instance Oracle database to RAC. The data files and Flash Recovery Area would be migrated to ASM using the RMAN commands BACKUP AS COPY DATABASE and BACKUP RECOVERY AREA, and stored in an ASM diskgroups called +DB_DG and +FR_DG. The DB_CREATE_FILE_DEST parameter would be set to +DB_DG and the DB_RECOVERY_FILE_DEST parameter would be set to +FR_DG.
What are the three best options for the location of your archivelogs so that they may be used properly for recovery without DBA intervention? (Choose three.)

A) Local File System with each instance writing to a local location provided that NFS read mount points are created to all other nodes with instances of the database.
B) Cluster File System with each instance writing to a shared location.
C) ASM diskgroup +DB_DG as specified for the Database Area provided that the ASM diskgroup is mounted on all ASM instances.
D) ASM diskgroup +FR_DG as specified for the Flash Recovery Area provided that the ASM diskgroup is mounted on all ASM instances.
E) Local File System with each instance writing to a local location provided that the path names are identical on all nodes.
F) Cluster File System with each instance writing to a separate location as long as they are in directories under the same mount point.

2. Which two statements regarding Oracle Clusterware are correct? (Choose two.)

A) The installation of Oracle Clusterware is not necessary if you have already installed vendor-specific clusterware.
B) The Oracle Database 10g CRS stack is compatible with Oracle 9i Group Services (GSD) processes.
C) The Oracle9i srvConfig.loc file still exists for backward compatibility in Oracle Database 10g.
D) The Oracle Database 10g version of the srvConfig.loc file is the ocr.loc file.

3. In which two orders could you run the following commands to migrate your database to ASM?
(Choose two.)
1 SHUTDOWN IMMEDIATE;
2 SWITCH DATABASE TO COPY;
3 STARTUP NOMOUNT;
4 ALTER DATABASE OPEN;
5 ALTER DATABASE TEMPFILE '/u01/ORCL/temp1.dbf DROP;
6 ALTER SYSTEM SET db_create_file_dest='+DATA' SCOPE=SPFILE;
7 BACKUP AS COPY DATABASE FORMAT '+DATA';
8 ALTER TABLESPACE temp ADD TEMPFILE;
9 RESTORE CONTROLFILE FROM '/u01/ORCL7control1.ctl';
10 ALTER SYSTEM SET control_files=" SCOPE=SPFILE;
11 RECOVER DATABASE;
12 ALTER DATABASE MOUNT;

A) 1,2,10,3,5,4,11,6,7,8,9,12
B) 6,10,1, 3,9,12,7,2,11,4,8,5
C) 6,10,1, 9,3,12,7,2,11,4,5,8
D) 10,6,1, 3,9,12,7,2,11,4,8,5
E) 6,10,1, 3,9,12,7,2,11,8,4,5

4. Which two initialization parameters must be set to start up an ASM instance in a RAC environment? (Choose two.)

A) INSTANCE_TYPE
B) ASM_DISKGROUPS
C) ASM_POWER_LIMIT
D) B_UNIQUE_NAME
E) ASM_DISKSTRING
F) CLUSTER DATABASE

5. You are asked to justify your proposed Maximum Availability Architecture to the IT director who feels that a four-node RAC cluster on the primary should not require a four-node RAC cluster for a physical standby database. The director suggests that either a non-RAC database should be used on the standby or that at most a two-node cluster is all that is required. Your proposed architecture was designed for both planned and unplanned downtime and for performance and scalability of services for all eventualities. How would you justify your proposal? (Choose two.)

A) The four-node physical standby provides for the same service preferences and performance profile in case of a failover to the physical standby database.
B) A non-RAC physical standby would not provide for high availability in the case of a lights out failover to the standby.
C) A two-node physical standby would not allow as many services to be supported as a four-node physical standby does in case of a failover to the physical standby.
D) The four-node physical standby database provides for continuous availability of services but the two-node RAC physical standby database does not.
E) Asymmetric configurations prevent the standby from issuing a FLASHBACK DATABASE command if required after a failover.

Solutions: