Which four tasks are performed by DBCA when you convert…

Which four tasks are performed by DBCA when you convert a single-instance database to a four-instance RAC
database?

A.
creating additional redo threads

B.
creating additional undo tablespaces

C.
creating shared ASM disk groups

D.
adding cluster resources

E.
creating database services

F.
adding additional initialization parameters

Explanation:
A: Create redo threads that have at least two redo logs for each additional instance.
B: If your single-instance database was using automatic undo management, then create an undo tablespace for
each additional instance using the CREATE UNDO TABLESPACE SQL statement.
Note:
ABF: You can use Database Configuration Assistant to convert from single-instance Oracle databases to
Oracle RAC. DBCA automates the configuration of the control file attributes, creates the undo tablespaces and
the redo logs, and makes the initialization parameter file entries for cluster-enabled environments. It also
configures Oracle Net Services, Oracle Clusterware resources, and the configuration for Oracle RAC database
management for use by Oracle Enterprise Manager or the SRVCTL utility.
https://docs.oracle.com/cd/B28359_01/install.111/b28264/cvrt2rac.htm