Which three are benefits of using RAC One Node in Oracle 12c? 

Answer options:

A. automatic failover for high availability
B. ability to perform rolling patches
C. online conversion from RAC One Node databases to multi-instance RAC databases
D. load-balancing of services within a single instance
E. online-conversion from non-RAC databases to RAC One Node databases
F. multiple instances of the same database on a single node to protect against instance failure

ABC

Oracle Real Application Clusters One Node is a single instance of an Oracle Real Application Clusters-enabled database running on one node in a cluster. It lets you consolidate multiple databases onto a single cluster and thereby adds to the flexibility that Oracle offers for database consolidation while reducing management overhead by providing a standard deployment for highly available Oracle Database editions. Overview - ✑ Failover cluster protection for unplanned downtime ✑ Online Database Relocation for workload management ✑ Online database patching to reduce planned downtime ✑ (C) Online upgrade to Oracle RAC for full scalability Benefits - ✑ (F) Protection from unplanned database or system failures ✑ (B) Rolling upgrades and patches for your OS and database ✑ Standard management for highly available Oracle Databases ✑ Online Databases Relocation for database virtualization References: http://www.oracle.com/us/products/database/options/rac-one-node/overview/index.html