Converting Single-Instance to RAC with DBCA Templates
Which method should be used to convert a single-instance Oracle 19c Database to a RAC Database?
Community Votes
67% of anonymous learners picked answer D. Votes are pick records left by other test-takers — they are not the verified answer.
Community Insight
The exam tests knowledge of Oracle's migration tools, specifically highlighting the common trap where candidates confuse the roles of rconfig versus DBCA in the conversion process.
This question addresses the correct procedure for migrating a single-instance Oracle 19c database to a Real Application Clusters (RAC) environment. The page establishes that using Database Configuration Assistant (DBCA) to create a template and then deploying it is the supported method.
Many candidates incorrectly select Option C, believing that the rconfig utility is required to create the template before using DBCA, which reflects a misunderstanding of modern Oracle automation capabilities.
Community Discussion (4 comments)
Comments & Corrections
No comments yet — spotted an error or have a note? Share it below.
Expert Analysis
Why the Answer Is Correct
Option D is the correct answer because Oracle 19c documentation explicitly supports using DBCA to migrate a single-instance database to RAC by first creating a template from the existing database and then using that template to create the RAC database. This automated approach handles the necessary configuration changes, such as updating control files and initialization parameters for cluster awareness.Why the Other Options Are Wrong
Options A and B are incorrect because they misstate the role of rconfig or oversimplify the process; rconfig is not the primary tool for this specific template-based migration path in 19c, and DBCA does not simply 'start' instances without the proper configuration steps implied in the other options. Option C is incorrect because while rconfig was used in older versions for some migration tasks, the standard supported method in 19c utilizes DBCA for both template creation and subsequent RAC database generation.Community Comment Notes
Community members largely agreed on Option D, citing official Oracle documentation that outlines this exact workflow. As one user noted, 'DBCA automates the configuration... creates undo tablespaces... and configures Oracle Net Services.' Another comment referenced the specific URL confirming that DBCA template creation is part of the required steps. Some dissenting votes pointed to rconfig, but the consensus and documentation favor the DBCA-only template approach.Official Reference
Exam Strategy
When dealing with Oracle database migration questions, always look for the most recent supported tool mentioned in the exam version context. For 19c, DBCA has become more powerful and is often the preferred single-tool solution for complex configurations like RAC conversions, reducing the need for legacy utilities like rconfig.
Frequently Asked Questions
Why is rconfig not used for creating the template in 19c?
In Oracle 19c, DBCA has been enhanced to handle template creation and RAC conversion autonomously, making the separate use of rconfig unnecessary for this specific workflow.
Can DBCA start RAC instances automatically after creation?
Yes, when you use DBCA to create a RAC database from a template, it configures all necessary cluster resources and can start the instances as part of the deployment process.