What is a RAC database in Oracle?
Oracle RAC is a cluster database with a shared cache architecture that overcomes the limitations of traditional shared-nothing and shared-disk approaches to provide highly scalable and available database solutions for all business applications. Oracle RAC is a key component of Oracle's private cloud architecture.
What are the benefits of Oracle RAC?
Oracle RAC also provides Reliability for the Oracle Database that is being used in a widespread and allows user to easily remove the database server from a single point of failure.
Oracle RAC focuses on Recoverability that if any failure occurs then the database should be such that it can recover from the failures.
Prerequisites to learn RAC DBA
Having basic database knowledge is enough.